1 @ 5.25
May I ask what you are doing?
"When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however."
This means you cancelled your bid of 1 @ 5.15 (which could have survived your competitors) to bring it up to 5.25. Why didn't you just keep it at 5.15?
Either you aren't aware of what you are doing, or you are trying to bring the bids up as high as possible before ending.