Audi SA customer poor service

My brother bought a Q2 a year and few months ago. In one incident last year, the car couldn't start which resulted into AUDI towing the vehicle. It stayed with them for more than a week and when we questioned the leadership, the lady that was assisting us was so rude (well am not sure if she was being rude or ******). After numerous calls, we eventually got the car back with the cracked windscreen because it was stored outside. Mind you Rusternburg is too hot ?. We somewhat understand that the windscreen had a chip which gotten worse over time when the vehicle was burnt outside. I personally raised this with Audi SA and they never entertained us. We got over it because the car was back. Now the vehicle repeated the very same thing and it's been over a month now that the car is with them. There is no communication or what's so ever from the dealership. I want to know from Audi of this is the kind of service they render to their customers or is it ****** or the problem is with the dealership.