Your not alone in this scum bag screweing you. I bought a used iron man suit that he shipped in a cardboard box with two grocery type bags as protection. I mean really?! And it showed up broken, shocker. Like destroyed. Probably broke before he shipped it and used broke in shipping as a cover...but he filled a claim with ups...and now won't return ups calls or mine.
How much money did he take from you? I'm thinking of contacting his/her local police. He's in USA, and this is fraud. If it reaches a certain amount in dollars it could also be grand larceny, or felony fraud. And if it's multiple states there's this new federal law that would allow the government to step in(feds)