Hyundai Motor India — Very Careless first free service to my new car

I was advised by the car service person to go fr under chassis painting. I accepted and said Yes to him. After service I took delivery and on coming home I noticed that my car was completely rough on the outer side including front and rear glasses. When askd bout this they said the under chassis spray paint has spread Over the car and we ll repair it on Monday. Such a careless answer from those buggers. Very poor hyundai.