let's go over the most plausible scenario shall we?
Anonymous seller: "Yes! I just sold a shitload of parts to somebody now I can go buy a ton of beer/weed, but first, let me go mud running with the parts I just sold!.......wow mud running was awesome! I got hung up twenty times and even used a truck with a chain around the jugs to pull myself out! Now I'm going to go spend all the money that just got wired to my paypal account on beer/weed....wow that was some good beer/weed! Oh shit, I have to send alf the parts I sold him. I think I'll just toss them into an old speaker box with no plastic wrap or anything so I can go back to enjoying the beer/weed I bought with his money....Thanks alf!"
Dude that really sucks, not quite sure how I would handle the situation personally, but please give us a heads up to who this jack off is so nobody else has to deal with him....best of luck with getting things straightened out.