Glad to see the thread’s still going after I gave the obvious correct answer in the first reply 🙂
Item not paid for, shrug, click whatever the appropriate button is on the eBay site and re-sell it.
Remember, eBay does a fabulous amazing service in connecting buyers and sellers all over the country who would have had absolutely no practical means of finding each other previously (i.e. before the growth of the internet). Who remembers the small ads in local papers? So it doesn’t work perfectly every time. Some people are dicks and some of them are just hopeless even if they aren’t trying to be dicks. Shrug. Have another go, or don’t bother if you don’t think it’s worth your time.