Find the transaction in "recent activity" click "DETAILS" find the seller's paypal email address, remember it by writing it down, etc.. Go to send money, type the email and ammount there and send. **The easiest solution would be, the seller should* take it on their own to send a money request to you, for the additional ammount needed. I'd ask him, that way PayPal has a record for what that additional money is for, JUST INCASE there is a problem in the future. And wow, Fedex? I thought they let anyone sign, I have had packages before in my name, and my mom/fiance/sister and everyone has signed for me. I'd report that to your local FedEx.
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