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BottleChallenge

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Donation Terms

These Terms explain how donations to the BrainGreen Foundation for BottleChallenge work: how you pay, how the money is used, monthly donations and refunds.

In force from 4 September 2026. Last updated: 8 November 2026.Wersja polska

1. The Foundation

BottleChallenge is a non-profit project run by Fundacja BrainGreen (the BrainGreen Foundation), a foundation registered in Warsaw (“the Foundation”). The project helps people find places with free drinking water where they can refill their own bottle. The Foundation pays for it with donations and with income from its work with companies.

Fundacja BrainGreen
Plac Konstytucji 4/17, 00-552 Warsaw, Poland
KRS 0000964547, NIP 5252903313, REGON 521709494
Bank account at mBank S.A.: PL39 1140 2004 0000 3102 8232 7812
Email: [email protected]

The Foundation is run by volunteers and has no paid staff.

2. Scope and definitions

These Terms apply to donations of money made to the Foundation through bottlechallenge.org (the “Support” page at bottlechallenge.org/support) and through any other channel connected with the BottleChallenge project.

In these Terms:

  • “the Foundation” means Fundacja BrainGreen, whose details are given in section 1;
  • “you” means the person, company or other organisation making a donation;
  • “these Terms” means these Donation Terms.

By making a donation you accept these Terms. They supplement the Terms of Service and the Privacy Policy. Donations are governed by the provisions of the Polish Civil Code on gifts (darowizna).

3. Types of donation

3.1. One-off donation

You choose an amount and pay it once. The payment is taken straight away and is not repeated.

3.2. Monthly donation

The amount you choose is taken automatically every month from the payment method you used for the first payment, until you cancel. Each monthly payment is a separate donation. Section 7 explains how to cancel.

3.3. Currency and amounts

Donations through the website are accepted in euro only. The minimum is EUR 1 and the maximum for a single payment is EUR 10,000. If you would like to give more, write to the Foundation and it will arrange a bank transfer with you to the account given in section 1.

4. Payments

4.1. Payment provider

Payments on the website are handled by Stripe. The Foundation's payment services are provided by Stripe Payments Europe, Limited, of Dublin, Ireland. When you have chosen an amount you are taken to a payment page run by Stripe, you enter your details there, and you return to the BottleChallenge website once the payment is complete.

The recipient of your donation is the Foundation, which holds the Stripe account. The Foundation does not collect donations through a crowdfunding platform or any other intermediary. Stripe pays the money into the Foundation's bank account.

4.2. Payment security

You enter your card details on Stripe's own page, which meets the PCI DSS security standard for payment cards. Your full card number never reaches BottleChallenge systems and the Foundation has no access to it. Your bank may ask you to confirm the payment, for example in its app. This is required by the rules on strong customer authentication.

4.3. Currency conversion

The amount is charged in euro. If your card is in another currency, your bank or card issuer converts the amount at its own rate and may add its own charge. The Foundation has no say in that conversion or that charge.

4.4. Processing fee

Stripe charges a fee on each payment and deducts it before passing the money to the Foundation. The Foundation therefore receives your donation less that fee. The Foundation adds no charge of its own and deducts nothing from your donation for administration.

4.5. Payment methods

On the payment page you can pay by card or with Stripe Link. Link is a Stripe service that lets you save your card details for later payments, and using it is subject to Stripe's terms. On some devices Stripe may also offer Apple Pay or Google Pay; these are ways of paying with a card stored in your phone's wallet.

You cannot donate by direct debit or bank transfer through the website. You can make a transfer to the Foundation's account in section 1 directly from your own bank.

5. How donations are used

The Foundation spends donations covered by these Terms on running and developing BottleChallenge, in particular on:

  • servers, databases and the maps that show places with water;
  • building and maintaining the website and the mobile app;
  • collecting, checking and updating information about places with water;
  • bringing the project to new cities and countries;
  • security of the service and data protection;
  • materials that encourage people to refill their own bottle.

Nobody is paid a salary out of donations. Donations go into the Foundation's general funds for BottleChallenge, and the Foundation decides which of the needs above to spend them on. The Foundation does not currently accept donations restricted to a particular purpose.

6. Tax relief and receipts

6.1. Poland

The Foundation is a foundation entered in the National Court Register (KRS). Whether you can deduct a donation from your income depends on your own tax position and on meeting the conditions set out in the Polish income tax acts. Among other things, those acts require a donation of money to be evidenced by proof of payment into the recipient's payment account. If the deduction matters to you, you can donate by bank transfer to the Foundation's account in section 1.

The Foundation does not give tax advice. If in doubt, please ask a tax adviser.

6.2. Other EU countries

The rules on deducting donations to an organisation in another EU country differ from country to country. Some countries recognise such donations under certain conditions. Your tax office or a tax adviser in your country can tell you more.

6.3. Countries outside the EU

Outside the European Union, whether a deduction is possible depends on the law of your country.

6.4. Receipts

After the payment Stripe sends a confirmation to the email address you entered on the payment page. On request the Foundation issues a confirmation that it has received your donation, which you can use for tax purposes. Please send the request to [email protected]. It can be dealt with fastest if it gives the date and amount of the payment and the email address you used.

7. Monthly donations

7.1. When payments are taken

A monthly donation is taken automatically each month, on or around the same day of the month as your first payment.

7.2. Cancelling

You can cancel a monthly donation at any time, without any fee and without giving a reason. Just write to [email protected]. The website does not currently have a page where you can stop the payments yourself.

Cancellation takes effect before the next scheduled payment. Payments taken before then are covered by the refund rules in section 8.

7.3. Changing the amount

To change the amount, cancel your existing monthly donation as described in section 7.2 and set up a new one for the amount you want.

8. Refunds

8.1. General rule

A donation is a voluntary gift and is not normally refunded. The Foundation refunds a donation in the situations listed in section 8.2 and considers any other request on its merits.

8.2. When the Foundation refunds a donation

  1. You were charged more than once for the same donation.
  2. The amount taken was different from the amount you chose.
  3. The payment was made without the consent of the holder of the card or account.
  4. A technical error led to a payment you did not intend to make.

8.3. How to ask for a refund

Send your request to [email protected] within 30 days of the payment, giving:

  • your name and the email address used for the payment;
  • the date and amount of the payment;
  • the reason for your request.

The Foundation pays an approved refund within 14 working days, to the card or account the payment came from.

The 30-day period applies to the Foundation's own refund procedure. It does not limit any rights you have by law, in particular your right to report an unauthorised transaction to your bank or card issuer and your right to recover a payment that was not due.

9. Transparency

  • Every place with water appears on the public BottleChallenge map, which anyone can use without an account.
  • The Foundation files its annual financial statements with the Financial Statements Repository of the National Court Register, where anyone can read them.
  • The Foundation intends to publish a short summary of its activities and spending on the BrainGreen Foundation website.
  • You can ask the Foundation at any time how donations have been used.

10. Donors’ personal data

10.1. What data is collected

On the payment page Stripe asks for your card details, email address, the cardholder's name and country, and in some countries a postcode. In its Stripe account the Foundation can see the amount and date of the payment, whether it is a one-off or monthly donation, the email address, the name given for the card, the country, the card brand and its last four digits. The Foundation never receives your full card number.

The BottleChallenge server does not store any record of donations and does not link them to an account in the app.

Stripe provides payment services to the Foundation. For its own purposes, such as preventing fraud and meeting its legal obligations, Stripe acts as a separate controller under its own privacy policy.

10.2. What the Foundation uses the data for

The Foundation uses donors' data only to:

  • accept and account for the donation and issue a confirmation;
  • thank you for your donation;
  • send you news about the project, if you have asked for it;
  • meet its obligations under accounting and tax law.

The Foundation keeps donation records for 5 years from the end of the year in which the donation was made.

10.3. What the Foundation does not do

The Foundation does not sell donors' data and does not pass it to anyone else for marketing. Apart from Stripe, data goes to other parties only where the law requires it. The Foundation does not send donors unsolicited marketing and does not make public that you have donated without your consent.

10.4. Your rights

You have the rights described in the Privacy Policy, including the right to access, correct and delete your data. Requests can be sent to [email protected].

11. Liability

The Foundation takes care to use donations responsibly and in line with its purposes. At the same time:

  • a donation does not oblige the Foundation to achieve any particular result;
  • the Foundation is not liable for loss caused by errors in payment processing on the part of Stripe, banks or card issuers;
  • figures the Foundation publishes, such as the number of places with water or bottles filled, describe activity on BottleChallenge. They are not checked by an independent body and are not a measurement of environmental outcomes.

12. Changes to these Terms

The Foundation may change these Terms. When it does:

  • it updates the “Last updated” date at the top of this page;
  • it tells donors with an active monthly donation about significant changes by email;
  • a donation made after the changes take effect means you accept the revised Terms.

13. Contact

The Foundation's details are in section 1 and at the end of this page.

Operator

Fundacja BrainGreen (BrainGreen Foundation)
Plac Konstytucji 4/17, 00-552 Warsaw, Poland
Entered in the National Court Register (KRS) kept by the District Court for the Capital City of Warsaw.
KRS 0000964547, NIP 5252903313, REGON 521709494
[email protected]