Ebay help needed

[philliesfan]

I Hope someone can help. I sold an item on ebay and as of today the item has not arrived and the tracking says in transit with an estimated delivery date of 08/14/22. Today is 08/25/22. This is an item under $20.00 so ebay standard envelope was used for shipping which includes insurance. The customer did file an item not received as they should.

I went to the Post Office and they said the tracking number provided was not their tracking number. How can that be? Is this envelope insured by the Post Office or does ebay self insure those items with the standard envelope?

What happens if the envelope is received after I send a refund and the customer refuses to reimburse me? They would have the card and the refund.

This is the first time this has happened and any help is greatly appreciated.

Thanks,
Bob