We rented from Dollar in Aug. There was a small scratch on front of the car we chose that we normally would have taken a pic of...but it was small and it was late so we never did. Upon return of the car, the Dollar rep pointed out the scratch and asked DH if it was there when we picked ot up. DH said yes and we left. Today we get a letter from Thrifty asking for 300 to repair scratch. How do we avoid getting charged for a small scratch we did not cause?