If you added the buyer by UserID to your blocked bidder list here,then you need to add a comma at the end. https://www.ebay.co.uk/bmgt/BuyerBlock?
If there bidding on any of your items then look to cancel there bids http://offer.ebay.co.uk/ws/eBayISAPI.dll?CancelBidShow
If there making offers then decline.
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