I don't sell on ebay often, most to fund more bag purchases so I don't have much experience in dealing with buyers. I have a wallet listed and received a message through ebay from a person making a BIN offer. They offered to pay through Western Union--which I'm not familiar with I've always paid/received payment via paypal--and made an offer that's IMO very very good for the pti. I was a little hesitant but the person had positive feedback from auth. LV sellers and other sellers of bags so I messaged them back saying I would accept the offer. Long story short, the person told me they got another wallet from another seller then this morning sent me a message asking if it were still available for their sister. Should I be wary of dealing outside of ebay and with Western Union?? Help!!