I've dealt with this before, but it's possible that eBay has changed their policies. (I don't know.) Tell him that you will ship to a USA confirmed paypal address only. If he pays you by paypal with anything other than that, you can refund his money from inside of paypal under that transaction. You can eventually (after 7 days) enter him as a non-paying bidder. Non-paying bidders cannot leave negative feedback on the items for which they have not legitimately paid. Again, the rules possibly could have changed with all the eBay changes as of late, which are mostly bad IMO. Nothing real comes from Nigeria, unfortunately. Best, -Dave