Proxy bidding?

[noodlehaus]

It is likely the max bid system:

"Max Bids"for Auctions

The “Max Bid” is button allows the system to automatically place bids on your behalf, up to the maximum amount you set, so you don’t have to bid manually. The ability to place Max Bids on auctions is available for approved sellers with a paid membership of Hobbyist or higher. By entering a Max Bid amount, you are authorizing the system to bid automatically for you up to your entered amount, and understand that if you win the auction, you will be responsible for the final bid amount plus the li…