No service from volkswagen rustenburg

My car broke down over the easter weekend, so on the tuesday morning, first thing, I had it towed to vokswagen in Rustenburg (the agents). They told me they were quite busy, but would have a look as soon as possible. I emphasised that I desperately need the car back to get to work. I phoned them that afternoon, and they had not had a look at it yet. After phoning again on the Wednesday morning, I was told that they will look at it that morning. Receiving no feedback once again, I phoned them again on Wednesday afternoon. They still had not looked at it. They said that other people were demanding their cars and making more noise than I was, so they looked at their cars first. I had also asked them to not try and start the car until they had had a look, since I suspected an issue with the timing chain. They had left my car in the sun for two days, and had repeatedly swung the motor over, trying to start it. I am extremely unhappy with the service, lack of communication and completely ignoring my instructions. They have possibly damaged my motor, without ever bothering to phone me.