Same thing happened to my mom. She took her car in the get a check up, and they scratched her car. They denied it and when my mom got an investigator they lied and made up this bogus story about how she drove really slowly and held this big protest and blocked traffic for a hundred miles and did all this crap. They were trying to throw everything of and their story had no merit what so ever. But anyway, don't let them make you lose focus and don't give up.