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Last updated: September 11, 2026

Terms and Conditions of the Grabowski Math Cards Online Store

§ 1. General provisions

1. The owner and operator of the online store operating under the domain name https://grabowskimathcards.com/ is the company "Karty Grabowskiego Grabowski i Grabowska-Dybek Spółka jawna" (general partnership) with its registered office in Poznań at ul. Św. Szczepana 20 a, 61-465 Poznań, entered into the Register of Entrepreneurs of the National Court Register by the District Court Poznań – Nowe Miasto i Wilda in Poznań, VIII Commercial Division of the National Court Register, under KRS number 0000947599, NIP (Tax ID): 7831849871, REGON: 521011256.

2. Seller's contact details:

a. postal address: Karty Grabowskiego Grabowski i Grabowska-Dybek Sp. j., ul. Św. Szczepana 20 a, 61-465 Poznań,

b. email address: info@grabowskimathcards.com,

c. phone number: +48 660 692 383, open Monday to Friday from 7 AM to 3 PM (Warsaw Time Zone),(charged as a standard telephone call, according to the tariff package of the service provider used by the Customer).

3. The Terms and Conditions of the Grabowski Math Cards online store are made available free of charge and continuously on the website https://grabowskimathcards.com/ in a manner that allows Customers to obtain, reproduce, and record its contents.

4. The Terms and Conditions specify the rules for selling Products using means of distance communication and providing electronic services.

5. In accordance with the provisions of Regulation (EU) 2022/2065 of the European Parliament and of the Council of 19 October 2022 on a Single Market For Digital Services and amending Directive 2000/31/EC (Digital Services Act) (hereinafter: "DSA"), the Seller has designated a contact point for direct communication with the authorities of EU Member States, the European Commission, the European Board for Digital Services, and Website Users regarding matters covered by the DSA regulation.

6. The contact point is available at: info@grabowskimathcards.com

7. Information about the Products provided on the Online Store's websites, in particular their descriptions and prices, constitutes an invitation to enter into a contract within the meaning of Art. 71 of the Act of 23 April 1964 of the Civil Code (hereinafter: "Civil Code").

8. Before starting to use the Online Store, the Customer is obliged to read the Terms and Conditions and the Privacy Policy.

§ 2. Definition of terms

1. Whenever the following terms are used in these Terms and Conditions, they shall be understood as follows:

a. Product Price - the gross value expressed in Euro (EUR) due for a given Product, including VAT, excluding delivery costs – unless explicitly stated otherwise. The Product Price is always indicated next to the description of a given Product in the Online Store. In the case of Products provided free of charge, the Product Price is EUR 0.

b. Working day - a day other than a Saturday, Sunday, or another public holiday within the meaning of the provisions of the Act of 18 January 1951 on public holidays;

c. Customer - a person purchasing a Product offered for sale in the Online Store or using the services described in § 3;

d. Civil Code - the term defined in § 1 sec. 6 of the Terms and Conditions;

e. Consumer - a Customer who is a natural person performing a legal transaction with an entrepreneur not directly related to their business or professional activity; (in accordance with Art. 221 of the Civil Code)

f. License - the term defined in § 10 sec. 1 of the Terms and Conditions

g. Newsletter - digital content within the meaning of the provisions of the Consumer Rights Act, including commercial information regarding the current operations of the Seller (including information about news and promotions available in the Online Store);

h. Non-conformity - non-conformity of the Product with the Sales Agreement (the criteria for assessing the conformity of the Product with the Sales Agreement are specified in Art. 43b sec. 1-2 of the Consumer Rights Act);

i. Recipient - a person who is a Consumer, an Entrepreneur, or an Entrepreneur with Consumer rights, who has concluded a Contract for the supply of a Digital Good with the Seller or has taken steps to conclude it;

j. Opinion - the Customer's opinion on a Product purchased by them, expressed by assigning points to the Product on a scale specified by the Seller or by describing their experience related to the Product;

k. Educational Institution - a budgetary establishment of a local government unit or a non-public unit conducting educational activities in accordance with separate regulations;

l. Privacy Policy - a document containing information about the processing of Customers' personal data by the Seller;

m. Products - an item or digital good offered by the Seller via the Online Store, both for a fee and free of charge, mathematical cards, and other educational games that can be ordered in accordance with these Terms and Conditions;

n. Terms and Conditions - these terms and conditions specifying the rules for the sale of Products and the provision of electronic services by the Seller.

o. Online Store - the online store available at https://grabowskimathcards.com/ run by the Seller;

p. Seller - the company under the name "Karty Grabowskiego Grabowski i Grabowska-Dybek Spółka jawna" with its registered office in Poznań at ul. Św. Szczepana 20 a, 61-465 Poznań, entered into the Register of Entrepreneurs of the National Court Register by the District Court Poznań – Nowe Miasto i Wilda in Poznań, VIII Commercial Division of the National Court Register, under KRS number 0000947599, NIP 7831849871, REGON 521011256;

q. Subscriber - a person who is a Consumer, an Entrepreneur, or an Entrepreneur with Consumer rights, who has concluded a Contract for the supply of a Newsletter with the Seller or has taken steps to conclude it;

r. Digital Good - digital content within the meaning of the provisions of the Consumer Rights Act, which may be delivered to the Recipient, in particular an electronic book (e-book), an audio file (e.g., background music), or a video file;

s. Digital Content - a Digital Good or a Newsletter;

t. Contract for the supply of a Newsletter - a contract for the supply of digital content within the meaning of the provisions of the Consumer Rights Act, under which the Seller undertakes to supply the Subscriber with a Newsletter free of charge for an indefinite period, and the Subscriber undertakes to provide the Seller with personal data;

u. Contract for the supply of a Digital Good - a contract for the supply of digital content within the meaning of the provisions of the Consumer Rights Act, under which the Seller undertakes to supply the Recipient with a Digital Good, and the Recipient undertakes to enter into a Contract for the supply of a Newsletter with the Seller or to pay the price;

v. Sales Agreement - an item or digital content offered by the Seller via the Online Store, both for a fee (e.g., educational cards, e-books, background music) and free of charge (e.g., free digital materials);

w. Consumer Rights Act - the act of 30 May 2014 on consumer rights;

x. Order - the term defined in § 5 sec. 3 lit. b point 8 of the Terms and Conditions.

y. Reporter - the term defined in § 15 sec. 6 of the Terms and Conditions.

§ 3. Technical requirements

1. In order for Customers to correctly use the Store, the following are jointly required:

2. Connection to the Internet;

3. Possessing devices enabling the use of Internet resources;

4. Using a web browser that allows displaying hypertext documents on the device screen, linked on the Internet via the WWW network service, supporting the JavaScript programming language, and additionally accepting cookies;

5. Possessing an active e-mail account.

6. Within the Store, it is prohibited for Customers to use viruses, bots, worms, or other computer codes, files, or programs (in particular scripts and applications automating processes or other codes, files, or tools).

7. The Seller informs that they use cryptographic protection for electronic transfer and digital content by applying appropriate logical, organizational, and technical measures, in particular to prevent third parties from accessing data, including via SSL encryption, the use of access passwords, and antivirus or anti-malware programs.

8. The Seller informs that despite the use of security measures referred to in section 3 above, using the Internet and electronic services may be threatened by malware entering the ICT system and the Customer's device, or by third parties gaining access to data located on that device. In order to minimize the mentioned threat, the Seller recommends using antivirus programs or measures protecting identification on the Internet.

§ 4. Rules for using the Online Store

1. The Customer is obliged to use the Online Store in a manner consistent with the generally applicable provisions of law, the provisions of the Terms and Conditions, as well as with good customs.

2. Providing unlawful content by the Customer is prohibited.

§ 5. Purchasing Products

1. The Product ordering procedure begins with adding the Product to the shopping cart. In order to add a Product to the cart, the Customer should go to the page describing a given Product and then click the "Add to cart" button.

2. The order placement procedure is divided into 4 stages:

a. First Stage – CART:

1. After adding the Product to the cart, the Customer chooses one of the options "Go to cart" or "Continue shopping". After selecting the "Go to cart" option, the Customer is redirected to a page showing all Products in their cart, the Product Price, the number of ordered copies of the Product, the total Product Price for all ordered copies of a given Product, which can be modified (the "Quantity" table), and the total gross price of all ordered copies of a given Product.

2. In order to continue placing the order, click the "Delivery and payment" button.

b. Second Stage – YOUR DETAILS:

1. After clicking the "Delivery and payment" button, the Customer is redirected to a page with a form where they must enter the Customer's details necessary to conclude the Product Sales Agreement and its delivery.

2. On this page, the Customer selects the delivery method and the payment method.

3. Available delivery methods are: I DPD Courier,Packeta Courier, Packeta ZBox and Packeta partner pickup locations. The Customer can pay the price for the Product by: Stripe payment method, upon delivery after the goods have been provided by the courier.

4. The Customer has the option to enter comments on the order in the "Order Notes" field.

5. On the form page, in addition to supplementing the Customer's details and delivery address, one can optionally check the "I need an invoice" box. After checking this box, a form will appear to enter invoice details.

6. In order to continue shopping, it is necessary to: (I) confirm that the Customer has read the Terms and Conditions and the Privacy Policy and accepts their content, and additionally (II) consent to the processing of personal data for marketing purposes is optional. To proceed to the next step, click the "Summary" button.

7. The Customer clicking the ,"Order and pay" or "Order and pay on delivery" button is equivalent to placing an offer to purchase the selected Product (hereinafter: "Order").

8. The Customer's approval of the order by using the "Order and pay" or "Order and pay on delivery" button is equivalent to accepting the obligation to pay the price of the Products and the costs of their delivery.

c. Third Stage – CONFIRMATION:

1. After clicking the "Order and pay", or "Order and pay on delivery" button, the Customer: (I) is redirected to a subpage confirming the placement of the order – payment on delivery is selected, or (II) is redirected to the payment operator's website – if online payment (Stripe) is selected.

2. In the case of online payment, after it is completed, the Customer will receive an e-mail confirming the payment.

§ 6. Execution of the sales agreement

1. Upon the placement of an order by the Customer, a sales (purchase) agreement for the Products indicated in the order is concluded between the Customer and the Seller.

2. After placing the order, the Seller will confirm the conclusion of the Product sales agreement. The confirmation will be sent via e-mail to the Customer's e-mail address provided during the order placement process.

3. If the Customer selects:

a. the "Instant payment –Stripe" payment method, the Customer is obliged to make the payment immediately after clicking the "Order and pay" (or "Order and pay on delivery") button;

b. the "Pay on delivery" payment method, the Customer is obliged to make the payment upon receipt of the parcel.

4. The Seller ships the Products next working day.:

a. in the case of orders paid in advance – from the moment the payment is credited to the Seller's bank account or confirmation of its completion is received from the payment operator;

b. in the case of orders with payment on delivery (cash on delivery) – from the moment the order is placed.

5. If payment for an order placed with the obligation to pay is not received (does not apply to orders with the payment on delivery option) within 5 working days from the date it was placed, the Seller reserves the right to cancel the order. Before canceling the order, the Seller may contact the Customer to remind them of the need to make the payment and to confirm their willingness to execute the order. Lack of payment within the specified period will be treated as the Customer's resignation from the order. If the Customer chooses the "Traditional bank transfer" payment method, the Seller is entitled to withdraw from the sales agreement if the Customer fails to make full payment within 7 days from the date of concluding the sales agreement. Withdrawal from the agreement means that the sales agreement concluded between the Customer and the Seller is considered unconcluded, and thus the Parties are released from the obligation to execute it. The Seller has the right to withdraw from the agreement on the terms indicated above within 14 days from the date of its conclusion.

6. Due to the fact that the Seller does not conduct wholesale sales of products, the Seller is entitled to introduce a maximum number of units of a specific product that can be covered by one order. Information about the introduction of limits regarding the maximum number of units of a specific product covered by one order will be made available in the Online Store. If the Customer intends to place an order for more than the maximum number of units of a product, the Customer should contact the Seller via the e-mail address info@grabowskimathcards.com. The Seller will inform the Customer whether it is possible to execute an order covering the indicated number of products.

§ 7. Contract for the supply of a Newsletter

1. In order to conclude a Contract for the supply of a Newsletter, the Subscriber should provide the Seller with an e-mail address and submit a declaration of consent to receive the Newsletter, familiarization with the Terms and Conditions and the Privacy Policy, and acceptance of their provisions.

2. Performing the actions indicated in section 1 above may occur in any way, in particular by the Subscriber completing an electronic form made available in the Online Store.

3. The Contract for the supply of a Newsletter is concluded for an indefinite period.

4. The Seller informs, and the Subscriber acknowledges, that:

a. the delivered Newsletter is not subject to subsequent updates;
b. the frequency and dates of Newsletter delivery are not strictly defined in advance and depend on the current situation of the Seller.

5. The delivery of the Newsletter takes place via e-mail to the e-mail address provided by the Subscriber.

6. The Subscriber may terminate the Contract for the supply of a Newsletter at any time and without giving a reason, with immediate effect. Moreover, based on Art. 27 et seq. of the Consumer Rights Act, a Subscriber who is a Consumer or an Entrepreneur with Consumer rights may withdraw from the Contract for the supply of a Newsletter without giving a reason, within 14 (fourteen) days from the date of its conclusion.
7. Withdrawal from the Contract for the supply of a Newsletter or its termination, regardless of the basis for performing this action, requires the Subscriber to submit an appropriate declaration to the Seller. The declaration referred to in the preceding sentence may be submitted by:

a. the Subscriber clicking on the link enabling resignation from receiving the Newsletter, which is sent along with each Newsletter;

b. the Subscriber sending the Seller a declaration of withdrawal from the Contract for the supply of a Newsletter or its termination via e-mail. The declaration referred to in this point 2 may also be submitted on the form constituting Appendix No. 2 to the Consumer Rights Act.

8. The Seller shall suspend the delivery of the Newsletter to the Subscriber immediately after the Subscriber performs one of the actions indicated in section 7 above.

§ 8. Contract for the supply of a Digital Good

1. The Recipient may receive a Digital Good in the form of an e-book available in the Online Store free of charge – provided they conclude a Contract for the supply of a Newsletter or conclude a Sales Agreement;

2. If wishing to receive a Digital Good in the form of an e-book, the Recipient should perform the following actions:

a. go to the Online Store website;

b. enter their name and e-mail address in the displayed form;

c. obligatorily check the checkbox next to the declaration of consent to receive the Newsletter, familiarization with the Terms and Conditions and the Privacy Policy, and acceptance of their provisions;

d. confirm consent to receive the Newsletter,
or:

e. go to the Online Store website,

f. purchase any Seller's Product.

3. Confirming consent to receive the Newsletter is equivalent to the Recipient concluding:

a. a Contract for the supply of a Digital Good and

b. a Contract for the supply of a Newsletter.

4. The provisions of § 8 of the Terms and Conditions apply to the Contract for the supply of a Newsletter concluded in accordance with the provisions of this § 9.

5. Terminating the Contract for the supply of a Newsletter or withdrawing from it after the delivery of a Digital Good in the form of an e-book does not affect the validity and effectiveness of the Contract for the supply of a Digital Good concluded in accordance with the provisions of this § 9.

6. The Digital Good is delivered to the Recipient immediately after concluding the Contract for the supply of a Digital Good.

7. The Seller delivers the Digital Good in the form of an e-book to the Recipient via e-mail to the e-mail address provided by the Recipient.

8. The Seller informs, and the Recipient acknowledges, that the Digital Good in the form of an e-book is not subject to updates.

9. If the Digital Good in the form of an e-book is not delivered within the time indicated in section 7 above, the Recipient shall call upon the Seller to deliver it. The request referred to in the preceding sentence may be sent via e-mail to the address indicated in § 1 sec. 2 lit. b of the Terms and Conditions. If the Seller fails to deliver the Digital Good in the form of an e-book immediately after receiving the request or within an additional, explicitly agreed upon timeframe with the Recipient, the Recipient may withdraw from the Contract for the supply of a Digital Good.

10. Withdrawal from the Contract for the supply of a Digital Good requires the Recipient to submit a declaration of withdrawal to the Seller. The declaration referred to in the preceding sentence may be sent via e-mail to the address indicated in § 1 sec. 2 lit. b of the Terms and Conditions.

11. If the withdrawal concerns a paid Contract for the supply of a Digital Good, the Seller is obliged to refund the price of the Digital Good paid by the Recipient immediately, but no later than within 14 (fourteen) days from the date of receiving the Recipient's declaration of withdrawal from the Contract for the supply of a Digital Good. The price refund shall be made using the same method of payment as the Recipient used, unless the Recipient has explicitly agreed to a different method of return which does not involve any costs for them.

12. The provisions of sec. 10-12 above apply exclusively to Recipients who are Consumers or Entrepreneurs with Consumer rights.

§ 9. License

1. Upon the delivery of the Digital Good to the Recipient, the Seller grants the Recipient a non-exclusive license to use this Digital Good under the terms specified in the Terms and Conditions (hereinafter: "License").

2. The License is granted for an indefinite period.

3.The License entitles the Recipient to use the Digital Good exclusively in the following fields of exploitation:

a. saving into the memory of electronic devices belonging to the Recipient;

b. playing and viewing the Digital Good;

c. reproducing the Digital Good, but only to the extent justified by the Recipient's personal needs.

4. The Recipient may use the knowledge and guidelines contained in the Digital Good in their private and professional life and for the purposes of their business activity. However, the License does not authorize the Recipient to share the Digital Good with any other persons, excluding cases of sharing the Digital Good under the provisions of chapter 3 of the Act of February 4, 1994, on copyright and related rights on fair use of protected works. Sharing the Digital Good with other persons beyond the cases of fair use of protected works requires obtaining prior consent from the Seller.

5. The License does not entitle the Recipient to grant further sub-licenses.

6. The Recipient's use of the Digital Good in violation of the License terms constitutes an infringement of the Seller's economic copyrights, entitling them (depending on the nature of the infringement) to pursue claims against the Recipient through court proceedings.

§ 10. Product prices and delivery costs

1. The prices of Products presented in the Online Store are expressed in Eurosand are gross prices, i.e., they include the value-added tax (VAT).

2. The prices given on the Online Store pages describing a given Product do not include the costs of its delivery.

3. Products ordered via the Online Store are delivered within the territory of European Union (except Malta & Cyprus) Products are delivered via courier companies cooperating with the Seller.

3. The costs of delivering a Product within the territory of the Republic of Poland are always provided on the Online Store website during the order placement process. The total amount to be paid, indicated during the order placement process, includes both the price of the Product to be delivered within the territory of the Republic of Poland and the cost of its delivery.

4. The costs of delivering Products outside the territory of the Republic of Poland are not provided on the Online Store website during the order placement process. Information on delivery costs will be provided to the Customer via e-mail within 2 Working Days from the date the order is placed. The Customer, after being informed by the Seller of these costs, is entitled to withdraw from the Agreement.

5. A VAT invoice is issued for each Product sold, provided the Customer selects the option to issue an invoice when placing the order.

§ 11. Statutory warranty complaint

1. The Seller is obliged to deliver Products to Customers in conformity with the agreement, free from physical and legal defects. For all Products ordered starting from January 1, 2023, the Seller is liable to Consumers for non-conformity of the Products with the agreement under the rules specified in the provisions of law and indicated below in § 12 of the Terms and Conditions. For Products ordered up to December 31, 2022, inclusive, the complaint procedure mode indicated in the wording of the Terms and Conditions in force at the time of concluding the Agreement applies. In the case of selling Products to Customers who are not Consumers, liability under the statutory warranty is excluded pursuant to Art. 558 § 1 of the Civil Code.

2. The Consumer may file a statutory warranty complaint in any manner, in particular:

a. in electronic form by sending an e-mail to the address: info@grabowskimathcards.com;

b. by phone at the telephone number: + 48 660-692-383;

c. in writing to the Seller's address indicated in § 1 sec. 2 pt. a.

3. A Consumer who exercises their rights under the statutory warranty is obliged to deliver the defective item at the Seller's expense to the address indicated in § 1 sec. 2 pt. a.

4. When filing a complaint about the non-conformity of a Product with the agreement, the Consumer should state the reasons for the complaint, provide information necessary to identify the order, and state their demand. If the information provided by the Consumer requires supplementation, the Seller will request the Consumer to supplement it in the indicated scope prior to reviewing the complaint.

5. The Seller will respond to the complaint within 14 days from the date of its submission. If the Consumer demanded a replacement of the item or removal of the defect or submitted a declaration on a price reduction specifying the amount by which the price is to be reduced, and the Seller did not respond to this demand within 14 days, it is considered that they deemed the demand justified. The Seller provides the Consumer with a response to the complaint on paper or another durable medium.

6. The Seller additionally points out that in relation to Customers who are Consumers:

a. The Seller is liable for non-conformity of the Product with the agreement existing at the time of its delivery and revealed within 2 years from that moment.

b. If the Product is non-conforming to the agreement, the consumer may demand its repair or replacement.

c. The Seller may make a replacement when the Customer demands a repair or the Seller may make a repair when the Customer demands a replacement, if bringing the Product into conformity with the agreement in the manner chosen by the Customer is impossible or would require excessive costs for the Seller. If repair and replacement are impossible or would require excessive costs for the Seller, they may refuse to bring the Product into conformity with the agreement.

d. The Seller performs repairs or replacements within a reasonable time from the moment they were informed by the Customer about the lack of conformity with the agreement, and without excessive inconvenience for this Customer, taking into account the specifics of the Product and the purpose for which the Customer acquired it. The costs of repair or replacement, including in particular postage, transport, labor, and material fees, are borne by the Seller.

e. The Seller hereby informs that due to the specificity of the products offered in the Online Store, the most efficient and preferred way to handle a complaint is to replace the Product with a new one, and encourages Customers who have found the Product to be non-conforming with the agreement to use this right.

f. In the event of a positive consideration of the Customer's complaint, the Customer provides the Seller with the Product subject to repair or replacement. The Seller collects the Product from the consumer at their own expense.

g. In the event of the Seller rejecting the Customer's complaint regarding the product's non-conformity with the agreement or the Seller failing to bring the product into conformity with the agreement despite upholding the complaint, the Customer may submit a statement on price reduction or withdrawal from the agreement to the Seller. The Customer is not entitled to withdraw from the agreement if the non-conformity of the Product with the agreement is immaterial.

h. The expiry of the deadline for declaring the non-conformity of the Product with the agreement does not exclude the rights of the Customer who is a Consumer if the Seller fraudulently concealed the defect.

§ 12. Complaints regarding Digital Content

1. The provisions of this § 13 apply exclusively to:

a. Customers who are Consumers or Entrepreneurs with Consumer rights;

b. Non-conformity of the Digital Good with the Contract for the supply of a Digital Good and Non-conformity of the Newsletter with the Contract for the supply of a Newsletter.

2. The Digital Content delivered to the Customer by the Seller must be in conformity with the Contract regarding its delivery:

a. at the time of its delivery – in the case where Digital Content is delivered once or in parts;

b. throughout the period of delivering the given Digital Content – in the case where Digital Content is delivered continuously.

3. The Seller is liable for Non-conformity:

a. existing at the time of delivery of the Digital Content and revealed within 2 (two) years from that moment - in the case where the Digital Content is delivered once or in parts;

b. revealed during the period of delivering the Digital Content - in the case where the Digital Content is delivered continuously.

4. In the event of revealing a Non-conformity, the Customer may submit a complaint containing a demand to bring the Digital Content into conformity with the Contract regarding its delivery.

5. The complaint is submitted via e-mail to the address indicated in § 1 sec. 4 pt 1 of the Terms and Conditions.

6. The complaint should contain:
a. the Customer's first and last name;
b. e-mail address;

c. a description of the revealed Non-conformity;

d. a demand to bring the Digital Content into conformity with the Contract regarding its delivery.

7. The Seller may refuse to bring the Digital Content into conformity with the Contract regarding its delivery if it is impossible or would require the Seller to bear excessive costs.

8. After considering the complaint, the Seller provides the Customer with a response to the complaint, in which they:

a. uphold the complaint and indicate the planned date for bringing the Digital Content into conformity with the Contract regarding its delivery;

b. refuse to bring the Digital Content into conformity with the Contract regarding its delivery for the reasons indicated in sec. 7 above;

c. reject the complaint due to it being unfounded.

9. The Seller responds to the complaint via e-mail within 14 (fourteen) days from the date of its receipt.

10. If the complaint is upheld, the Seller at their own expense brings the Digital Content into conformity with the Contract regarding its delivery within a reasonable time from the moment of receiving the complaint and without excessive inconvenience to the Customer, taking into account the nature of the Digital Content and the purpose for which it is used. The planned date for bringing the Digital Content into conformity with the Contract regarding its delivery is indicated by the Seller in the response to the complaint.

11. In the event of a Non-conformity being revealed, subject to sec. 14 below, the Customer may submit a declaration to the Seller on price reduction or withdrawal from the Contract when:

a. bringing the Digital Content into conformity with the Contract regarding its delivery is impossible or requires excessive costs;

b. the Seller has failed to bring the Digital Content into conformity with the Contract regarding its delivery in accordance with sec. 10 above;

c. the Non-conformity persists despite the Seller's attempt to bring the Digital Content into conformity with the Contract regarding its delivery;

d. the Non-conformity is so significant that it justifies withdrawal from the Contract regarding the delivery of the given Digital Content without a prior request to the Seller to bring the Digital Content into conformity with the Contract regarding its delivery;

e. it is evident from the Seller's statement or the circumstances that the Seller will not bring the Digital Content into conformity with the Contract regarding its delivery within a reasonable time or without excessive inconvenience to the Customer.

12. The statement on price reduction or withdrawal from the Contract may be submitted via e-mail to the address indicated in § 1 sec. 4 pt 1 of the Terms and Conditions.

13. The statement on price reduction or withdrawal from the Contract should contain:

a. the Customer's first and last name;

b. e-mail address;

c. date of delivery of the Digital Content;

d. a description of the revealed Non-conformity;

e. an indication of the reason for submitting the statement, selected from the reasons indicated in sec. 11 above;

f. a statement on price reduction, along with the indication of the reduced price, or a statement on withdrawal from the Contract.

14. The Customer cannot submit a statement on price reduction to the Seller in the event that the Non-conformity concerns a Newsletter or a Digital Good delivered free of charge.

15. The Seller is not entitled to demand payment for the time during which the Digital Content was non-conforming with the Contract regarding its delivery, even if the Customer used this Digital Content prior to withdrawing from the Contract regarding its delivery.

16. The reduced price must remain in such a proportion to the price resulting from the Contract regarding the delivery of Digital Content as the value of the Digital Content non-conforming to the Contract regarding its delivery is to the value of the Digital Content conforming to the Contract regarding its delivery.

17. The Seller is obliged to refund the price of the Digital Content only in the part corresponding to the portion of the Digital Content non-conforming to the Contract regarding its delivery and the portion of the Digital Content for which the obligation to deliver fell away as a result of withdrawal from the Contract regarding its delivery.

18. The Seller refunds the amounts due to the Customer as a result of exercising the right to a price reduction immediately or the right to withdraw from the Contract, no later than within 14 (fourteen) days from the date of receiving the statement on price reduction. The refund of the amounts referred to in the preceding sentence is made using the same method of payment as the Customer used, unless the Customer has explicitly agreed to a different method of return which does not involve any costs for them.

19. The Customer may not withdraw from the Contract regarding the delivery of Digital Content if the Non-conformity is immaterial.

20. In the event of the Subscriber withdrawing from the Contract for the supply of a Newsletter, the Seller suspends the delivery of the Newsletter immediately after receiving the statement on withdrawal from the Contract for the supply of a Newsletter.

21. Pursuant to Art. 34 sec. 1a of the Consumer Rights Act, in the event of the Customer withdrawing from the Contract regarding the delivery of Digital Content, the Customer is obliged to cease using this Digital Content and sharing it with third parties.

§ 13. Withdrawal from the Product sales agreement

1. The Consumer has the right to withdraw from the Product sales agreement within 30 days without giving any reason, subject to the provisions of sec. 2 below.

2. In the case of purchasing Products constituting digital content in the Online Store, such as audio, visual, audiovisual, and other similar materials, the Customer may withdraw from the sales agreement for such a Product within 14 days without giving any reason. In the case of these Products, the Customer may start downloading or playing them or using them in another manner consistent with their intended use before the expiry of the deadline for exercising the right to withdraw from the agreement. In such a case, the Customer, before beginning to use such a Product, is explicitly informed in a separate message that they will lose their right to withdraw from the agreement in relation to the given Product, to which the Customer can consent by submitting a declaration of intent in electronic form by checking the appropriate tick-box in the message. After submitting this declaration, the Customer may start downloading or playing or using such a Product in another manner consistent with its intended use.

3. The deadline to withdraw from the agreement expires after 14 days from the day on which the Consumer acquired possession of the Product, or on which a third party other than the carrier and indicated by the Consumer acquired possession of the Product on behalf of and at the request of the Customer.

4. To exercise the right of withdrawal, the Consumer must inform the Seller of their decision to withdraw from the Product sales agreement via an unequivocal statement (e.g., a letter sent by post or e-mail).

5. The Consumer may use the model withdrawal form attached as Appendix No. 1 to the Terms and Conditions, but it is not obligatory.

8. To meet the deadline for withdrawal from the Product sales agreement, it is sufficient for the Consumer to send information concerning the exercise of the Consumer's right to withdraw from the agreement before the withdrawal period has expired.

7. Effects of withdrawal from the agreement:

a. In the event of withdrawal from the Product sales agreement, the Seller shall refund the Consumer all payments received from the Consumer, including the costs of delivering the Product (with the exception of additional costs resulting from the delivery method selected by the Consumer other than the cheapest standard delivery method offered in the Online Store), immediately and in any event not later than 14 days from the day on which the Seller is informed about the Consumer's decision to exercise the right to withdraw from the Product sales agreement.

b. The Seller will carry out such a refund using the same means of payment as the Consumer used for the initial transaction, unless the Consumer has expressly agreed otherwise; in any event, the Consumer will not incur any fees as a result of such a refund.

c. The Seller may withhold the refund until having received the Product back or until the Seller has been provided with evidence of it having been sent back, whichever is the earliest.

8. The Consumer shall send back or hand over the Product to the Seller immediately, and in any event not later than 14 days from the day on which the Consumer informed the Seller of the withdrawal from the sales agreement. The deadline is met if the Consumer sends back the item before the period of 14 days has expired.

9. The Consumer will have to bear the direct costs of returning the Product.

10. The Consumer is only liable for any diminished value of the Product resulting from using it in a different way than was necessary to establish the nature, characteristics, and functioning of the Product.

§ 14. Intellectual property of the Seller

1. All components of the Online Store, in particular:

a. the name of the Online Store;

b.the Online Store logo;

c. photos and descriptions of Products;

d. the rules of operation of the Online Store website, all its graphic elements, interface, software, source code, and databases

  • are subject to legal protection pursuant to the provisions of the Act of 4 February 1994 on copyright and related rights, the Act of 30 June 2000 - Industrial Property Law, the Act of 16 April 1993 on combating unfair competition, and other generally applicable provisions of law, including the laws of the European Union.

2. Any use of the Seller's intellectual property without their prior express permission is prohibited.

§ 15. Processing of personal data

  1. The controller of Customers' personal data is the Seller, i.e., Mateusz Grabowski and Justyna Grabowska-Dybek running the business: "Karty Grabowskiego Grabowski i Grabowska-Dybek Spółka jawna", with its registered office in Poznań at ul. Św. Szczepana 20 a, 61-465 Poznań.
  2. These Customers' data will be processed by the Seller in order to execute the Product sales agreement pursuant to Art. 6 sec. 1 lit. b) of the GDPR. The data will be processed for this purpose by the Seller for the duration of the execution of the agreement, and will then be stored for the time prescribed by law for legal, tax, and archiving purposes pursuant to Art. 6 sec. 1 lit. c) of the GDPR. If the Customer grants separate, voluntary consent, this data will also be processed for the Seller's marketing purposes, consisting of sending e-mails with the most interesting product offers and promotions offered by the Seller. The data will be processed for marketing purposes until the possible withdrawal of consent for its processing and will not be the basis for automated decision-making regarding the Customer, including profiling, for direct marketing purposes.
  3. In justified cases, the Customer's personal data may be processed in the legitimate interest of the Seller pursuant to Art. 6 sec. 1 lit. f) of the GDPR, such as handling complaints at the Customer's request or pursuing possible claims related to the performance of the agreement with the Customer.
  4. Customers' data may only be transferred to entities to which the Seller has entrusted data processing on its behalf (subcontractors), as well as shared with entities whose involvement in the execution of the Products ordered by the Customer is necessary for the proper execution of the agreement or additional services related to it. Furthermore, if necessary, this may also include postal operators and courier companies, banks, as well as relevant authorities and public bodies if they are legally authorized to access this data.
  5. Providing personal data by Customers is voluntary but necessary to conclude the agreement. Failure to provide personal data prevents the conclusion of a Product sales agreement with the Seller.
  6. Every Customer has the right to access their data, rectify it, restrict its processing, or transfer this data to another administrator, or permanently delete it, unless the obligation to store it by the Seller results from legal provisions or is necessary to protect its legitimate interests. Voluntary consent to process Customer data for marketing purposes can be withdrawn at any time without any negative consequences for the Customer, in particular without affecting the execution of the sales agreement. Every Customer whose right to privacy has been violated by the Seller has the right to lodge a complaint with the President of the Personal Data Protection Office (UODO).

§ 16. Additional information

1. The controller of Customers' personal data is the Seller, i.e., the company under the name: "Karty Grabowskiego Grabowski i Grabowska-Dybek Spółka jawna", with its registered office in Poznań at ul. Św. Szczepana 20 a, 61-465 Poznań.

2. Information regarding the processing of Customers' personal data is contained in the "Privacy Policy of the websitewww.grabowskimathcards.com" made available by the Seller in the Online Store to all users of the Online Store. The Seller encourages reading this document.

3. Information on methods and technical means used to detect and correct errors in the entered data:

a. during order placement, until the "Order with obligation to pay" button is pressed, the Customer has the possibility to independently correct the data entered in the order form;

b. after placing the order, the Customer can correct the data provided in the order by sending an e-mail to the Seller atinfo@grabowskimathcards.com, as well as by phone at + 48 660-692-383;

4. Information on the rules and methods of recording, securing, and sharing the content of the concluded agreement by the Seller:

a. recording, securing, and sharing the content of the concluded Product sales agreement is done by sending an appropriate e-mail message to the Customer after concluding the sales agreement;

b. the content of the concluded Product sales agreement is additionally recorded and secured in the Seller's ICT system and made available upon every request of the Customer.

5. The Product sales agreement is concluded exclusively in English.

6. The Seller stipulates that all materials available on the Website (in particular text materials, graphics, photos, audiovisual materials) are protected by law, specifically under the Act of 4 February 1994 on copyright and related rights. The Customer has the right to use them only within the scope of permitted personal use. Copying, reproduction, dissemination on the Internet, and other forms of using materials and messages posted on the Website that go beyond the limits permitted by law are prohibited.

§ 17. Out-of-court dispute resolution

  1. The provisions of this § 19 apply exclusively to Customers who are Consumers.
  2. The Customer has the option to use out-of-court methods for handling complaints and pursuing claims.
  3. Detailed information on the possibilities for the Customer to use out-of-court methods for handling complaints and pursuing claims, as well as the rules of access to these procedures, are available at the offices and on the websites of:

a. district (city) consumer ombudsmen and social organizations whose statutory tasks include consumer protection;

b. Provincial Inspectorates of Trade Inspection;

c. The Office of Competition and Consumer Protection (UOKiK).

4. The Seller informs that unless such an obligation arises from absolutely binding provisions of law, they do not use out-of-court methods of handling complaints and pursuing claims.

§ 18. Changes to the Terms and Conditions

1. The Seller may amend the Terms and Conditions in the case of:

a. changes to the Seller's details;

b. changes in the Seller's business profile;

c. the Seller launching new services, modifying previously provided services, or ceasing their provision;

d. implementing technical modifications to the Online Store requiring adaptation of the Terms and Conditions' provisions;

e. legal obligation to implement changes, including the obligation to adapt the Terms and Conditions to the current legal status.

2. Customers will be informed about a change in the Terms and Conditions by publishing its amended version on the Online Store website. Simultaneously, the amended version of the Terms and Conditions will be sent to Users via e-mail.

3. Sales agreements concluded before the publication date of the new Terms and Conditions on the Online Store website shall be governed by the provisions of the Terms and Conditions in force at the time.

4. A User who does not agree to a change in the Terms and Conditions may terminate the Account Service Agreement with immediate effect within 7 (seven) days from the date of receiving the amended version of the Terms and Conditions via e-mail. Failure to terminate is deemed as consent to the change in the Terms and Conditions.

5. Termination of the Account Service Agreement takes place by the User submitting a declaration of termination of this Agreement to the Seller. The declaration referred to in the preceding sentence may be sent via e-mail to the address indicated in § 1 sec. 4 pt 1 of the Terms and Conditions.

6. Immediately after receiving the declaration referred to in sec. 5 above, the Seller deletes the Account.

§ 19. Final provisions

1. The law applicable to the Terms and Conditions and the Agreements indicated therein is Polish law. However, the choice of Polish law made in the preceding sentence does not deprive the Consumer of protection resulting from foreign legal provisions that cannot be excluded by agreement and that would apply in the absence of the choice of Polish law made in the preceding sentence.

2. Despite the security measures used by the Service Provider, they inform that the primary threat to every Customer is the possibility of malware being placed in their ICT system to cause damage. To avoid related threats, it is important that the Customer equips the computer used to access the Internet with an antivirus program that is constantly updated.

3. The Terms and Conditions enter into force on 11.09.2026 and apply to orders placed in the Online Store from that day on.


ATTACHMENT No. 1

WITHDRAWAL FORM (this form should only be completed and returned if you wish to withdraw from the Purchase Agreement))

Recipient: Mateusz Grabowski and Justyna Grabowska-Dybek running the business: "Karty Grabowskiego Grabowski i Grabowska-Dybek Spółka jawna", with its registered office in Poznań, address: ul. Św. Szczepana 20 a, 61-465 Poznań, info@grabowskimathcards.com

I/We hereby give notice that I/we am/are withdrawing from the contract for the purchase of the following goods:

……………………………………………….…………………………………………………………...………………………………………………………………………………………………….……….……………………………………………………………………………………………………………………………………

Date the goods were ordered:

.…………………………………………………………………………………………………………..

Date the goods were received:

……………………………………………………………………………………………………………

First and last name of the consumer(s):

……………………………………………………………………………………………………………Address of the consumer(s): ………………………………………………………………………………………..............

Order number and invoice number: ……………………………………………………………………………………………….…………..
The purchase price is to be refunded by bank transfer to bank account number

IBAN [country code]: ……………………………………………………………………………………………….…………..

Date ……………………………………………………………………………………………………

Consumer's signature (only if the form is sent on paper)