Using ebay, I've bid on a couple of items and noticed that eg an item may have 3 bids, the top bid being £10. I submit a bid of £12 and am told immediately I have been outbid. I then do a couple of other bids, same reply and now I see there have been 6 bids and the price has risen. Is there a trick going on to raise the price by getting me to bid against myself?