this is a hot topic la.. i think that the buyer should actually handle all the problems himself.. bought already and does not want to send the stuff to u back for 1 to 1.. that's an idiot.. u give him chance and he juz let the chance slip away. no point to waste ur time helping him.. probably u should have changed ur policy during selling the items after u have sold the card and encountered problems with that buyer.. man.. he's a real pain in the arse..