Unhappy Customer

I've recently changed my insurance provider to Discovery Insure, this was after I had received a call telling me that this was such a good company with so many perks e.g free car hire, free tracker e.t.c. After the recent storm that hit Durban 10 10 2017, I was forced to claim against Discovery as my car refused to start. Discovery had arranged for my vehicle to be towed and also arranged for a courtesy car to be given to me for a period of 30 days (five stars for this). That's basically were the good service stopped, my vehicle was sent to Sinclair's Panel Beaters (bear in mind this was a mechanical problem). I've been chasing up with Sinclair's from the beginning regarding the status of the repair and was assured that work had already started on the car, (all of information was passed onto Discovery). This was a lie as Sinclair's had only started work on the car the day that it was to be returned to me. They have since then come back and advised that they are having problems with repairing the car, my courtesy car has been taken away as the 30 days have lapsed, my motor vehicle has not been fixed as yet. I've tried to contact Discovery, but every time that I get through I end up with a new call center agent, when ever you ask for someone that you've spoken to previously, you get told that they are not available. One two occasions, I've left a message for a manger (someone senior) to give me a call, no such luck. I've sent numerous email to Discovery and received no replies, its become clear that Discovery hands your vehicle over to a repair company and then it becomes your problem, they do not chase up with repairs, courtesy car gets taken away, this also becomes your problem. I'm now forced to taking lifts with my work colleagues with no clear indication on the status or return of my vehicle.