Car returned after repair with other problems

I had a car accident where my mirror and side was damaged. When I claimed, I was told by the consultants that they are unable to get a case, to which I had to get myself, driving a damaged car with a mirror that is dangling.

Nevertheless, the car was then taken in for repairs. It took more than 30 days (the courtesy car period lapsed, I was left without a car for 5 days). To which their promised date that I will get the car passed, without feedback, I had to follow up and they gave me another excuse.

Finally my car was returned after repairs, however, the following day, the car was not starting and all electrical components not working. Before the car went in for repairs, everything was ok with the car, never had an issue with electrical functionalities of the car.