I've had a similar problem a few years ago, where a bun penny was displayed with a earlier obverse that didn't match with a date. I contacted the seller asking him if he could check that both pictures displayed were of the same coin. He contacted me back and assured me that they were. It was therefore possible that this was a new die combination. Bids started to appear on this penny and I didn't want to miss it if it was something special. Knowing that other collectors had noticed the coin I decided to contact him again. I explained that I still believed that he had posted the wrong pictures and if I were to bid and won, and the coin turned out to be different to the coin pictured, I would want my money refunded in full. After this he removed the sale from Ebay and contacted me back explaining that he had in fact posted the wrong picture of the obverse. He obviously couldn't be bothered to check the first time, probably one of those people that wouldn't believe that he could make a mistake. (I hope that I have made no spelling mistakes or grammatical errors )