Unhappy and disappointed client

On 12 February 2021 I got involved in a car accident, my daughter was driving the car and the deer jumped on the car. The windscreen, bonnet and upper roof of the car was badly broken. The accident was reported immediately. It is now 18 March and I'm still sitting with a car that has not been fixed in my garage. I have been the only one calling them to ask how far are they with my claim. Today I get a call from their investigating officer telling me that they will not fix my car, my drivers license is still new and all this frustrating things. She says that my neighbors told her that my daughter travels work with the car, which is a complete lie. My daughter takes a taxi to work. On the day of the accident she was taking the kids to school. Why would she choose to believe and take the words of my neighbors over what I am telling them as their client. This investigating officer sent me WhatsApp messages telling me that they must change my details and make my daughter the regular driver of the car, of which she is not. She even had the audacity to tell me to return the courtesy car tomorrow morning if I got it,and that I must fix the car and keep the receipts safe for future reference. Whenever I called them they would tell me that the matter is escalated to the sales manager. The manner in which they held my claim was utterly disappointing.