Shouldn't rely on staff.
I myself didn't check the simple puncture made by screw as I was away at the time of flat tyre; which my friend did change the tyre for my wife.
They didn't fix the tyre and they proposed to change the tyre.
When I talked to my taxi driver friend, he surprised and told me that he checked the puncture and it was minor caused by a screw; and they should definitely be able to easily fix it.
I can just imagine they wanted to sell one, instead.