My listing was booked by a buyer, then that buyer became unregistered, then I got a message from eBay that your listing has been canceled, don't do shipping and don't refund, now the buyer is registered again and the buyer is messaging me to refund or cancel the order, what should I do?

eBay has canceled the order but customer ask for refund | Ask a Mentor

eBay has canceled the order but customer ask for refund | Ask a Mentor | eBay Community