Once a bid has been placed, whether it’s a regular bid or an automatic (max) bid, it cannot be lowered or cancelled.
All bids are binding, so please make sure you review your amount carefully before confirming.
If you would like to increase your auto bid limit, you can do so at any time while the auction is still live. Simply enter your new maximum amount and confirm your bid. The system will automatically update your auto bid to the higher limit.