Hello, I won a fairly expensive coin after making a best offer, but all I received was an unsealed envelope, almost empty apart from another envelope inside it, possibly to give the impression that something substantial was inside. The envelope arrived by Tracked mail, so when I complained to eBay that the coin had not arrived they told me that it had arrived. I have contacted the seller politely twice but have received no reply, and eBay says I can't appeal the case as the case is closed. ...

Luckily you can open an item not as described case after one for item not received has been closed.

I paid for an item and all I received was an empty envelope | Member To Member Support

I paid for an item and all I received was an empty envelope | Member To Member Support | eBay UK