Well - you've got the payment confirmation enclose it to the seller as a proof. If they have the problem with their bank - let them contact it, it's not your problem. Also, there are rare cases when your bank will accept withdrawal of the payment but it could be tried to be asked. If nothing works with the seller you can and should contact the local police. By local police it's meant the country of the seller. Write an email, unless you're a lawyer it's the best to let chatGPT writes the report. They will get it and they might not answer but the report is there for sure. If they get multiple reports they will act.
And please do enclose the name of the seller so we can all know who are we dealing with. We should get back the blacklists. Luckily, cheating is not common in this hobby…I was cheated only twice but once by a professional numismatic dealer in Vancouver, BC and never put it on any blacklist… I should've but now it's long closed…
