When I bid and I change my mind, can I cancel or change my bid? June 13, 2022 23:26 Updated Yes. During the auction, you can go to your ThetaDrop account to Update Bid or Cancel Bid. Related articles Is there a minimum bid requirement? How does the highest bid auction work? What if someone outbids me at the last second? What happens if I don’t win the auction? I was the highest bidder, why didn’t I receive my item? Do I need to bid a certain percentage/dollar amount more than the last person?