Also remember Flippa does NOT care about payment and does not offer you any guarantees about payment. They can penalize or ban a user but they won't guarantee your payment, so fake bids are rampant and they don't have to honor the bids in the end. For example, someone can simply use another fake user to inflate your prices beyond reasonable values, so nobody else will buy.....
Edited: If you log in as another user, the system will tell you "bid XXX or more", normally XXX is a few bucks above the greatest bid, so you can see it.... (Use a proxy, be safe...)