Unacceptable service.

WORST service EVER! I had my car booked for a routine service at NTT Volkswagen Krugersdorp. The service was included in an extended service plan which we paid for. It took TWO WEEKS for this service to be done. Everyday they had a different excuse. Some of the excuses were that they don't have the parts in stock. After waiting for the parts, they realised they don't have the necessary tools for the service. We had to wait a few more days for that to arrive. After the tool arrived the technicians apparently struggled because the service is too difficult for them. I called customer care after the car was about a week with the dealership already. They simply said they will liase with the dealership. The dealership and customer care promised that the car would be ready the next day, everyday. The dealership stopped taking my calls. Neither the dealership, nor customer care would get back to me to keep me up to date. I had to call multiple times to get through, just to be told that they are busy with something else. I had to drive up and down to the dealership if I wanted an update. I received my car after two weeks and customer care simply says the complaint is resolved. Nothing about this unacceptable service was done. No investigation was made. There is no way we can know for certain if only the service was done, or if they had to repair something else - why did the excuses change every day? Why do we pay so much for 'quality' and a 'trusted' brand if it is not what we get?