This scam expert seller found a new trick: he marked having sent me a return postage shipping label, without actually having sent me any label at all. Now I have to call Ebay for help so here's how to get Ebay to call you on your phone number
Ebay home help https://www.ebay.ca/help/home (be sure to be logged in)
Appeal to a case (after contacting Ebay)    • Ebay appeal to a case (contact them)