Re: How do I get back at a shady eBay seller??
 

leave a bad reply on his feedback and leave him bad feedback and forget about it.

Re: How do I get back at a shady eBay seller??
 

I have all of his contact information including his email and phone number


you said that ^ you can do plenty, sell his contact info on ebay and his phone number or give him alot of prank calls using collect. Or you could send him the package back but don't put the intercooler in it, just poop in it for about a week straight so when he gets it he gets a big ol box of poopy ;)