I decided to give Pennycave.com a try so I purchased bids, won an item, and I haven't heard anything from them since. I sent 10 or so emails since the auction ended without a single response.

How they get you is that they must send an invoice to you for shipping costs, but if the item didn't sell for the amount that they hoped, they will not send it and will just keep the money you spent bidding. It is a total scam so stay away.

Please spread the word so that no one else gets scammed like I did.