Stranded and waiting for a courtesy car which is still not booked.

This company has been sending me from pillar to post with regarding my courtesy car in my time of need. On the 10th of January I was contacted by a auto&general consultant regarding my courtesy car. The consultant and I agreed that I would fetch the car on Thursday at the car hire however he placed my booking for Tuesday. When I contacted the car hire they said my bokking had expired cause it was for Tuesday. Therefore I called auto&general again to make a new booking for the 15th of January Saturday as I needed to be at work on Monday however when I got to the car hire again they said there was no booking made by my insurance. I called the insurance again they told me that there was a communication error on their side and that they would book it for the same day which is the 15th of January, however whilst I was waiting for them to book the car the consultant dropped my phone call. I called the insurance again they told me they sent an email for the booking to the national car hire. I called again trying to confirm my booking with the car hire and they said they have not received anything from auto&general. I'm here sitting for a car and I'm stranded and I can't go to work. Their offices are now closed, and I can't contact them, whilst I called them the whole day to deal with my query. I am very disappointed