this shit happened to me last year, which was coincidentally the last time I purchased a video game from ebay.
i found a copy of xenogears new and advertised as non greatest hits last summer and put down like 18 bucks for it. The original copies of xenogears, fully wrapped and in 'new' condition, are incredibly rare, so I had no problem putting down money for it. Then it comes and its a GH with that neon green shit on the side. It pissed me off on multiple levels-- one, because I thought I was getting a good deal on a rare game and I wasn't; two, because I was lied to; and three, because I paid nearly sticker price for a GH game when it was advertised as a new game. They even had a picture of the non-GH game cover there to sell it.
Pissed me off. I gave him a bad review, which to a lot of those places is worse than just returning your money, cuz it means they lose future customers too.