Airtel — mobile phone no.[protected] holding balance amount of rs.1194.31 and stopping incoming calls.

I have airtel mobile phone no.[protected] for over 12 years. I am based at agra (Up) and being and i have been moving around to bengaluru, noida and gurugram quite a lot since my children are based there. That's the reason i keep sufficient balance in my account so that my communication is not disrupted for lack of recharge amount. I have a balance of rs.1194.31 in my account for this phone. Abruptly, my outgoing calls was stopped for want of recharge. Now i have a message from airtel that incoming calls will also be stopped after 4 dec.2018. My humble request is that if airtel do not want to use my balance of rs.1194.31 for providing services, this amount may be returned to me. And then if i have to continue with new conditions, i will continue and pay whatever the charges may be. Either services to my mobile be continue using my balance amount or may be returned and say goodbye.