Unacceptable Service and Communication from Rarc - Immediate Action Required

I am writing to express my extreme dissatisfaction with the service I received from Rarc regarding the repair of my vehicle. My car was sent in for repairs, and the insurance company sent the authorization on the 4th of March. However, when I inquired a week later about the status of my car, I was informed that Rarc had not received the authorization. This was despite the fact that the authorization was sent to the email address provided by Rarc to Momentum, which is on their system.

Throughout this process, I struggled to get any information from Rarc. I had to constantly ask for communication and updates. Eventually, I was told that my car would be ready on the 1st of April. I paid the excess and collected the car, only to have it break down again the same day.

I had to beg for feedback and was eventually told that the car needed to go to Haval. I informed Rarc that my car rental had to be returned on the 4th of April and requested timelines. On the 4th, I was told that additional authorization was needed. I had to return the rental car and asked Rarc for a courtesy car, but was told that all cars were allocated. I also asked to be placed on their waiting list for a car and requested timelines for when my car would be ready.

Despite my repeated requests, I received no feedback via email, and the person managing their WhatsApp messages blue-ticked me. I sent an email on the 7th of April, stating the following, but have yet to receive any response: