Bad Service and Costly Delay

On the 10 July 2017, I was badly hit by a taxi driver who overtook 4 cars in a single lane while there was a car from the on coming traffic with a right of way to off ramp from Justice Mohammed to Florence Ribeiro in Pretoria. My insurance Dial Direct approved my claim and my car was towed to this Gateway Autobody works in Centurion. The insurance gave me courtesy car for 14 days and after that I paid from my pocket, I returned the car when I realised I have paid over R24500.00 on it. I raised my concern with them that the delay on my car isn't because of me or anything but car parts not being available in stores in SA but they weren't willing to hear anything. I was left without a car yet my work, business and all requires me to have car. After a while they gave me a car again for 2 weeks again and that car must go back anytime but the issue is that my car is still with the repairs and I'm not happy with how the slow repairing process is going but looks like I'm not in the VIP client to be heard by Dial Direct. Since I took their insurance for my car in 2012 this is my first ever time to claim but I must say I am extremely unhappy. Three months without my car and no proper explanation neither is the service good too.... This is certainly not value for money as I expected