Unprofessional + Irresponsible = Pathetic service

I took my brand new car to have the windows tinted with anti Smash and grab film at Secure Tint and Signs owned by Rakesh and based in Mount Edgecombe. I drove off and noticed a rattle in the door panel. It sounded like something was loose inside the door panel. I called the owner and he said I should bring it back and they will check it out but insisted that they do not remove the door panel when they do the tint. When I went back the owner was not there but one of the workers showed me how they partially pull the door panel off so they can access the rest of the window. I called the owner and he said there is nothing they can do as they do not open the door panel. I took my car to the dealership service department where they opened the door panel and found the cover for a Stanley knife. The dealership contacted Rakesh from Secure Tint and Signs who still refused to take responsibility for the negligence of his workers. According to Rakesh they do not use Stately knives in their workshop. I wonder how they cut their tint if not with a Stanley knife..... I have had to since pay for the cost of having to sort out a problem that Secure Tint and Signs caused due to their negligence.