Returned package without a trace

Hello everyone

A buyer returned the items I sold them. I obviously paid for the return shipping because I like peace. You will understand that I do not agree with the buyer’s lie. He must have thought I was going to give him the items for free.

The problem is, I haven’t received the items 10 days after the expected date. It is even indicated that the package is untraceable in the tracking. Do you think I will still be paid? If so, how long will it take?

In your opinion, what is really happening?

Thank you