Really sorry to hear that. It always happens, brand new car then you have a short while during which it's pristine then some thoughtless or careless s.o.b. bursts your bubble. Likewise, I had a car that was just 2 weeks old and some idiot put a sizeable dent right in the middle of the passenger door which cost a pretty penny to fix. That wasn't so bad cos two years later some woman embedded her Fiesta in the rear of it!!
As dopper says, you have to resign yourself to it, open your wallet then move on - but enjoy the car when it's looking (and behaving) well
