Need some advice on this: Several weeks back I put beta testing key for World of Warcraft expansion on Ebay with Buyout option. A person used the buyout option on the item and few hours after that, the auction was removed by Ebay for copyright infringement. By that time the payment was already sent. I emailed that guy expressing my concern that with the auction no longer there neither of us have any protection in case something goes wrong. He told me he paid for the item and still want it so I emailed him the key and sent him the card with the key on it just to be sure. Now that guy emailed me back and told me the key that he paid for can no longer be used for the beta testing or any games in the future. Apparently there's a cut off time for the beta testing that neither of us knew and it was well past that time when he won the auction. He wants the full refund back but I wrote on the auction that there's no return or refund since it's an intangible property that cannot be reused. I am not sure if I should give him any money back but do feel a bit sorry for him. What would you do?