Poor service

The insurer towed my car on the 13.02.2018 to a panelbeater. I have a car rental provision which is 30 day. An insurance only authorized for repairs on the 09.03.2018. I raised unhappiness with their delay and was informed by the insurance that it caused by their relocating. Now the rental period has lapsed which was extended by 10 day. I'm told that nothing can be done and presently do not have car. I'm told I should speak with the panelbeater whom I do not have a relationship with. More to it, I'm being told that VW does not part for my car and that means I still have to wait for quite some time and on the other hand I do not have car to use. I'm so frustrated by the service I'm getting from my insurance.