Question: Can I block particular bidders?
Sometimes the ability to block bids from various kinds of bidders
(new members, members with low feedback, and so on) isn't enough. This is often the case when one particular bidder continues to bid on and/or win your auctions even after you've asked them not to do so. eBay has a feature to help you.
In circumstances like these, the best thing to do is block the bidder in question by name. This will prevent them from placing any more bids on any of your eBay auctions, now or in the future. In short, it is like placing another eBay member on your own personal blacklistyou will never have to hear from them again.
To block a particular eBay bidder from bidding on your auctions, visit this tool:
Seller Blocked Buyer/Bidder List
In the tool, the names of every eBay member you'd like to never hear from (or receive bids from) again, separated by commas. The list should look like this:
catlady51, mayathebuya, jefftakel, beachbum6, comicseeker
You can include up to 5,000 member IDs in your blocklist and can revise it at any time.