I'm in a battle with my dealer at the moment getting my rear bumper re-sprayed. They scratched it while doing tail-light replacement under warranty due to moisture ingress.
The first time the paint shop did it, it had been layered in really weird and looked wrong. Handed it back last week to re-do and picked the car up this morning - noticed the splitter had been snapped (by the paint shop), oh, and the bumper is still painted poorly