Got some paint bubbling on the top of the corner of the rear bumper trim. Am I correct in assuming that this is just paint blistering and not rust as the bumpers are synthetic or am I missing something? Can anyone give me any idea how quickly this could be fettled by a decent and sympathetic body shop as I have someone coming to see the car on Sunday... Bubbling is right on the top edge and around 5 inches long and about a quarter of an inch down. It's Jasper Blue by the way. Cheers for any QUICK advice!