Advaith Hyundai — AC not working after the service

Address: Bangalore, Karnataka

I had given my i20 car (Reg no: KA03MS4656) for servicing in June 2015. I got the car back from service on 20th June 2015. But after the service, the AC is not working properly. Inspite of many calls to the customer care, there is no proper response. every time I call, they say some person will call you and that will never happen. The invoice details are given below 1. B[protected] 2. B[protected]