Uninflicted accident with 7 days old Golf 6

Dear MT community, my 7 day old Golf 6 1.4 TSI (at the time 500km, now 700km) was slightly damaged on Sunday by an accident (with a camper) at the rear bumper. The cause of the accident admitted that he was responsible and wants to report the accident today with his insurance. Nevertheless, my golf is probably classified as an accident car and I really don’t want to, especially since the car is a few days old. I have from a friend find out that you can complain about a new car, because the car is not yet a month old and still has under 1000km on it. I then searched Google and found some confirmations. What would you advise now, since the cause of the accident is also an expert of KÜS.