Airtel — Wrong Bill generated and no reply from company

I Have been cheated by Airtle Post paid services by generating wrong bills for my previously used Airtel Number([protected]) and activating the services on their own and adding extra charges and changing the plan of the bill without any information and permission. They have charged 1000 rs for internet charges which i have not used and they were sending Adult links like "Click here for namitha wallpapers" which i have not activated and they charged 30rs every month. They are driving customers to wrong path by sending all such links.
They are calling me daily for settlement of bill even i have told i will be paying the bills if they are sending all my bills but they are not ready to send all bills, instead they are simply calling again and again for payment.
They are calling my friends especially girls with fake identity like bajaj insurance and asking them to come so and so place for recieving my courier which is totally misguiding the girls and trying to trap them which is a criminal offence.
With all these things i am losing peace of micd and not able to concentrate on my work.
Airtel legal team itself have confessed sometimes system will generate wrong bills and activate services automatically and they are ready to give waveoff for that amount. But i think this is completely cheating the customers which is happening big time.
So request to take strict action and close such kind of things happening.