Frustrated, and unhappy client

My car has been with Renew it Bedford view for almost 2 months now, and it's still not repaired. I was told they ordered my back fender from out of SA and it would be delivered on the 24th of june when I called them on the day my car was still not taken to panel beating because they were still waiting for the fender, fast forward 2days later they sent me a message saying my car has moved to panel beating and it was the first step of the repair process, they said I could have my car by the 10th of July a week later I call them for an update and I'm told the car is still not finished at the panel beater because they are waiting for a certain panel yet the promised I could have it next week, I'm so furious even the service agents dont contact me to explain what is happening, this whole thing has been a nightmare that doesnt look like its gonna end anytime soon.