I'm pretty sure something like that was going on when I bought my bike. There was one other person bidding on it with me, and when the auction ended he had won and actually retracted his bid... I got curious so I looked up his profile etc, and could tell from the feedback that him and the seller had done lots of bussiness together. My guess is that he was helping his friend get a higher bid. I hate to admitt it, but to avaoid any hassle I ignored it. I mean I got a bike that ran and was in decent conditon for a price I was very happy with... It did teach me to look out for that sort of thing in the Future.