the e-mail stating they were received fine is your key
Any hassle from e-bay just refer them to the e-mail and state that you dont give a f//k about what the buyer claims after a few weeks, OR ebays decision - The buyer says they were received fine - thats good enough for you AND the law and you aint going to refund Also refer them to what other sellers have said about the buyer
(In law ebay have NO right to make a "decision" The ONLY right ebay have is to subrogate the buyers case (take it over) then sue the seller. But to do this they MUST present the case in court AND present evidence. YOUR evidence is clear and unambiguous . the buyer says goods were received fine. THAT ends your responsibility
Ebays terms and conditions are irrelevent cos
1) The only contract you have with ebay is to advertise your goods and handle the financial transaction for the fees they charge
2) the contract for the sale of the goods is between you and the buyer ONLY
3) Ebay have no right to interfere in that contract other than taking over the rights of the buyer (or seller) to sue the other party in a case of an alleged breach of contract
4) Taking over those rights does NOT allow ebay to become judge in any breach of contract matter cos they are now an interested party
5) their terms and conditions take away YOUR right for the matter to be judged in a court that does NOT have an interest