With all due respect to the OP. It's a little strange that there are still some people out there that would even give that request a 2nd look.

And I think my point is driven home even further by the link to the PayPal thread. I mean, are there really that many people out there that would even question the validity of such a request? If you're the seller your calling the shots. As soon as someone deviates, end of transaction.