Don't feel bad I'm in the same boat, some listings that has ended says
not relisted but actually has been relisted, what a mess eBay has
become. There are other sites out there, got a sale on one of them this
morning.
But wouldn't this be mail fraud? File a report with the postal inspector
or police report, this is also a crime! Let the buyer know ebay may not
do anything but....you will!