Airtel — freezing of account

I am writing with extreme grievance that my airtel money wallet account has been freezes. No transaction is being allowed causing extreme inconvenience as i have a handsome amount of money in my wallet. I downloaded my airtel app with so many hopes for easier access of money which have now been abolished by this unpredictable, unwanted and unbearable bad service. I would very much like to get my money back. I would like to urge the authority to take necessary steps as soon as possible.