I bought a item worth about $500 on eBay, but get the totally different item, and returned. At first time i thought he is doing cheat. But now the seller still insist he sent me the right one. And said he had already filed a police report. I am really confused, maybe he really sent me the right thing but something happened when it shipped to me.

I am an international student here, i don't want to involve anything with the police, it will effect my job. Can anyone help me how to solve this problem?