Mahindra And Mahindra — ruined paint work of my car

Address:

560023

I am the owner of the alturas g4, i met with an minor accident and given the vehicle for service to india garage peenya bangalore for replacement of my back bumper, they had kept for 4 days and delivered the vehicle with replacement of my bumper, later i noticed that my entire car was ruined with white paint spots due to negligence by bodyshop. I had give the car back due to this reason. 1 day later they gave me back the car. But even after polishing majority of the marks still remain. I'm afraid that any more polishing will lead to deterioration of the paint work as now already me new car looks dull. This sort of sloppy work from mahindra's service centre is not acceptable. Now i am stuck because even a complete repaint of the car will lead to drastic reduction in the resale price of the car which i'm not ready to bare as the negligence was on mahindra's part. Please help me resolve this issue at the earliest as this car is my means of transport and now for almost a week it has been going to the service centre