Hyundai Motor India — mc wheel scratches

Address:

Ahmedabad, Gujarat

I had gave my car at sharma hyundai ashram road for 2nd service on friday when i went to take my car my both mcwheel of rightside was scratched when i complained for that they tried to clean it with thinner etc. But was not clean and said give us one more day and on saturday they said we tried but its not going i informed customer care about it and they convinced me by saying it will be done on monday and when i met them they refused.
Workshop head kushal suthar said
"you keep your car on your risk not ours it is not our responsibility"
And it was so weird behaviour
I genuinely want to know this how hyundai provides service to customers???
It has been three days my car is in workshop i had called customer care but i didn't got any reply properly.