Purchased a brand-new car, but later found out the car has been re-painted; not disclosed; surface chipping; warrenties refused

I’ve purchased a brand-new car, but later found out that the car has been re-painted and the dealership did not disclose the information. A couple weeks ago, I noticed the surface of the car was chipping away and when I called the company’s call center, I was told that the warranty should cover it. Later, when I took my car to the service center, I was told they can’t fix the car because the car has been re-painted. I’ve called the company’s customer service center about this issue and expecting a call from the senior manager. Even though I’ve bought a brand-new car, not only they re-painted and didn’t disclose the information, but also I can’t even use their warranties to get the issue they have caused to be fixed. Right now, I only see the chipping in one section, but who knows if I will see the same issue in other area.