How does maximum bidding work?
To place a maximum bid, decide the maximum amount of award miles you could spend on this auction and enter it into the “My max bid” field on the item detail page. The system will confidentially store your maximum bid amount and will automatically bid on your behalf in increments up to your maximum bid. Bids will be placed on your behalf only when it is needed to maintain your position as a winning bidder, and is placed only up to your maximum bid amount. You will be notified via email once the system has placed your maximum bid. If you are the auction winner (or one of the winners), the system will deduct only the winning bid amount and not the entire maximum bid that was offered. If other participant bids outbid your maximum bid, you will not win the auction.