Hello ebay experts, i sold something on ebay that is pricy and the buyer is asking me if i could refund her $15 for shipping (what i charged for shipping in my auction) and if i could use her fedex account to mail the handbag to her. the handbag i sold to her was $850 and am not sure if i should use her fedex account, is this a bad idea or an alert of a scam? thank you