First off:
Douchebaggery at its' finest....plus I'm sure you really don't care about my problems and how/whether or not you cause them.
Bottom line is that you two came to an agreement and YOU kept your side. It is NOT your fault that the package is returned and you should NOT be expected to foot the bill for shipping a second time AND break the law while doing it.
Send him an email with nothing but a link to this thread and a note to email you after he reads the information in the link.
Tell him you will NOT send back until he sends... bah! What Adunaphel said!!!!! LOL
Except maybe the Red Hot Poker. Whenever I hear that, I think Mel Brooks...
Eric