Airtel — unauthorized billing for a product I didn't order

Address:

Jaipur, Rajasthan, 302020

It is not enough that you send me, and permit others to send to me many advertisements that i do not want. You have also installed programs and services onto my phone that i do not want. Now you have started billing me on my cell phone for namkeenpack for two months and automatically deducting your charge from what i pre-pay to you. I have not ordered that service. I do not know what it is. Stop whatever service to me that namkeeppack is and refund to me the money you have extorted.