Ebay won't refund the buyer.
You will be paid 14 days after the transaction (so on day 15) if the tracking is not updated to show delivered.
I would still see if you can add the tracking number manually to the sold item. Hopefully, even though it wasn't scanned when collected, it will be scanned at delivery.
If you have any problems with non-delivery, it's probably best to contact RM and get them to update the tracking so it shows that the item was collected.
They take a very long time to answer the phone but are very helpful when you eventually get through.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)