Dissatisfied customer - BMW Sandton Auto

I took my car in for service its first time service at the BMW Sandton Auto (BMW South Africa) today, I told them that the air-con in the car was faulty and asked them to check it as well. This was very strange for me (the air-con to be faulty so soon) i bought the car brand new from BMW last year July.

They took the car in and to my surprise during the day i received a call from BMW Sandton Auto advising me that they've quoted me R19 000.00 to fix the air-con, you can imagine my shock when i heard this. My car is a year old now and still under motor plan. How am i expected to pay such a huge amount of money for a car that is only a year old and still under motor plan???

Speculations were that while driving a small stone could have hit the bottom of the car and for that reason, motor plan would not cover this. I was told that the motor plan covers "wear and tear damages " i would imagine that my situation qualified as such as this was a natural damage. My argument is that, the car did not hit a pothole or anything like that or was not involved in an accident BUT i am still expected to pay R19 000.00 for "a stone that hit the underneath of the car" and damage to the coolant? What proof do they even have that this was as a result of a stone? I am not happy with the POOR service i received and the explanation for the R19 000.00 does not make sense to me.

I NEED HELP TO DEAL WITH THIS MATTER SOONEST, it is very clear that BMW Sandton Auto is not willing to assist me or hear me out for that matter. I left the dealership dissatisfied with the service. I am astonish at the way i was treated today. Up until today I thought BMW was one of the best.... :(

Where can i go for help? Somebody please!!!!!

Unhappy customer, **********