I had a person who won a bid, but never paid. It is now to late to cancel the transaction. I have been messaging this buyer, but of late all messages have been coming back to with an error. how do I find out about the state of the user name.
What does it show when you click on their feedback or username? You should only allow 4 days to pay and on day 5 cancel for nonpayment. Then block them; https://www.ebay.com/bmgt/BuyerBlock
At this point you are spinning your wheels wasting time.