Hyundai Motor India — Defective car has delivered, registration :gj06l3422

Address:	Vadodara, Gujarat, 390021
Website:	AC issue in I2o mangna

I have purchage Hyundai i20 (GJ06HL3422) magna in July 2014. The car was already defective at that time but they told me its minor issue. I have denied to take such car but they told me if any issue they will change or fixed.
Main Problem in car AC problem, AC is not working propelry. I have given my car to fix the issue. They have taken my car 3 days and last day they says It shall be not fixed.
When I ask to root cause the issue even they not find out the issue.
Now again he says that you will drive and if again same problem come they will fix.
Now I am facing the same issue again and they have not fixed it. I already told him if not able to detect the issue then change the whole AC, but they never agree to change the issue.
Now I am driving the car with the existing issue.
I am requested you to Please solve my issue or help me out to fix this issue.