Airtel — outgoing calls barred after making payment

Address:

Hyderabad, Andhra Pradesh, 500034

My name jayaprakash reddy. My phone number is [protected]. On january 1, 2018 i paid rs 1563 due for the number and have a receipt for it. I discovered late that the amount was wrongly credited to [protected] by the airtel billing clerk. I brought this to the notice of the airtel staff in their begumpet headquarters. They promised to rectify it but did not. Now the outgoing calls from the above number are barred.
Airtel has rotten service. The phone simply does not work in my office on rd no 5 due to poor signal for the past several years. I made hundreds of complaints but no action till so far. It now strikes me that i need to take a legal recourse to redress my problems.