Airtel — i'm complaining about privacy issue

Hi!
This is arun ([protected]).. I’m using airtel for past few years. I was happy with your service. But for the past few days i aint happy, because one of my colleague is tracking my call log through someone they know from airtel. He is also recording my calls in recent days. This affects my personal life badly. Being your customer i would like to have some privacy. I hope you assure me that. Kindly raise a complaint and do the needful asap.
Contact no - [protected]
K. Chinnadurai
Contact person - arun