Yeah. I think there is nothing wrong with the thread title. If we find out something insane and understandable happened, no harm; no foul. But no communication in 13 days is wild.
Only thing I can see is you send the money, and he decides against sale for whatever reason. He refunds you and doesn't notice that the refund is cancelled, because he is busy. He hasn't been on the forum, so I assume something is going on in his personal life. I would think that the refund would have come with a short message at least.