I have a fraud buyer that keeps bidding on my items with multiple usernames. How do i block him

[janet9988]

Your best option is to list s a buy it now only and add immediate payment required.

You can block their ID but they will just keep making new ones.

https://www.ebay.com/help/listings/selling-auctions/selling/canceling-bid?id=4140&st=12&pos=1&query=...