Girl, don't even get me started LOL!
Ok, it's not hard at all. Log into your paypal account. Go to "Resolution Center" at the top. Click on it. Click on orange "Dispute a transaction" button, and follow the steps. It's really easy.
Not only will opening a claim get their attention, but you mark it as a counterfeit, it DEFINITELY will. It can get their account deleted, lose funds, all sorts of stuff. So, you can message them before and give them a 48 hours headsup to see if they can please you before you have no choice but to get nasty so to speak..
Yeah, as a business owner, I've dealt with it more than once. I don't take lightly to people selling fake bull**** products. I also got a box in yesterday from a vendor. I was excited until I opened it. It was all very high end skincare (Yay)...expired and covered in dust! (Not so yay!) I would never intentionally sell anything I wouldn't personally use (and I'm very picky!) I had to open that claim, but he's being nice about it. Still...who the hell tries to sell something like that?!
Anyways, that was my rant LOL, Good luck! If you need any help, feel free to PM me!!