Do this FIRST - Go to your Profile, click on Payment Receiving Preferences and check YES to Block payments from U.S. users who do not provide a Confirmed Address. Then you will not have to deal with this problem ever again. Then REFUND his payment and tell him to confirm his address by placing a credit card on file with Paypal. If he doesn't want to do it, tell him to send you a money order. If he still doesn't want to do it, relist the auction. Don't leave any feedback yet.
