eBay

On May the Third I sent an identical replacement to my buyer (who paid via paypal), she received her item on the ninth of May, signed the proof of delivery from the courier, and emailed me to confirm the delivery and that she will leave positive feed...

Is there anything I can do to prevent or minimise buyers who don't pay for their ebay purchases other than to block them for future transactions? Even that doesn't do much good when the buyer creates another throwaway ebay account for their next purc...