The seller was corresponding with me and after I mentioned research on the coin he stop corresponding and canceled sale after five days.He still has failed to contact me.Apparently he should be cited for his failure but how?

I can not seem to contact eBay with a complaint about a seller not honoring a sale | Ask a Mentor

I can not seem to contact eBay with a complaint about a seller not honoring a sale | Ask a Mentor | eBay Community