DONATSciences and Maths
Buying

Refund and delivery policy

How you receive what you buy, and when we replace it or give your money back. Last updated: 1 November 2026.

What you receive

Everything we sell is digital: PDF files (some also in Word) or print codes. Nothing is posted by mail.

Delivery

  • Pay with MTN Mobile Money, then send a WhatsApp message to 0788 804 242 with the name of the resource and, if possible, your MoMo transaction ID.
  • We check the payment and send your private download link on WhatsApp, usually the same day and at the latest within 24 hours.
  • A download link works for 7 days and can be opened 3 times. Save the file on your phone or computer the first time you open it.
  • A print code works for 30 days and for 2 prints.

Lost or expired link

If your link has expired or you lost the file, send us your MoMo transaction ID within 30 days of buying and we will send a new link free of charge.

When we replace or refund

  • Wrong or damaged file (wrong level, missing pages, a file that does not open): we send the correct file free. If we cannot fix it, we refund you in full.
  • Not delivered: if you paid and did not receive your link within 48 hours after contacting us, we refund you in full.
  • Paid twice or too much: we refund the extra amount.
  • You chose the wrong resource: tell us before you open the link and we exchange it for another resource of the same price.
  • Resource not available: if we cannot supply what you paid for, we refund you in full.

When we cannot refund

Because a digital file cannot be returned, we do not refund a resource that has been downloaded and works as described, only because you changed your mind. Please read the free sample pages before you buy.

How to ask

  • Send a WhatsApp message to 0788 804 242 (or an email to [email protected]) within 14 days of payment, with your MoMo transaction ID and the problem.
  • Approved refunds are sent by MTN Mobile Money to the number that paid, within 7 days.
  • Schools with a school licence or an invoice follow the terms agreed with them.

Donations

Donations are voluntary gifts and are not refundable, except when a mistake was made (for example a wrong amount): tell us within 14 days.

Your other rights

This policy does not remove any right you have under the law of Rwanda. See also the Terms and conditions.

See also: Terms and conditions · Refund and delivery policy · Privacy · About us