I had two broken clips from what I am guessing was the airbag recall. It was done before I bought the car. I ordered new ones. It's a quick and easy fix, but definitely understand the aggravation of fixing something that should have been handled by the person servicing the car. If they broke the clips, they should have replaced the clips, and they had to know they broke the clips. I bought mine from these guys:
https://www.ebay.com/itm/361077038643