Worst Experience Ever

I got into an accident in April and my insurance took my car to Renew-It. They mentioned that a new door was needed and that I would only receive my car in September due to the door being on back order. They did not even attempt to get the door from other dealers and it was only when I brought the issue to my insurance’s attention that they managed to get the door. Mind you, this was only done at the beginning of June. They started with the repairs and promised me I would receive my car by this week. I then got a call from the Customer Service Agent to inform me that the paint job was not done correctly and that I would have to wait until next week to receive my car. This is the worst customer service ever. How do they expect me to go without a car for so long?