IMO someone with better English than mine should prepare a typical "Send my refund to Neo900 UG (BIC/IBAN), I won't hold GDC liable, etc." and post it here, so those who wish their money donated to Neo900 UG to be able to simply copy/paste it in the "Notes" on the "Order Page"
The refund goes either directly back to your credit card (if you used one to pay) or if you have used SEPA/IBAN bank transfer, please provide your account data where we should send the money to.