Client has to bear consequences

On 15 March 2016 I was on an accident and my car got towed same day. I've been constantly calling and sending emails to the insurance to track progress and to enquire what will happen should the repair take too long and was always promised to be called by supervisor. Unfortunately this never happened. The courtesy car had to be returned on 18 April 2016 and am now carless and I now have to bear consequences of delays caused by insurance and panel beaters. The panel beaters informed me that the assessor only assessed my car after 2 weeks and the insurance claims this was done within a week of the accident. Now I must take a taxi when I have a car which I am paying for and the insurance refuses to extend use of car hire and understand my situation.