Airtel — complaints about airtel dth

Airtel digital tv was recharged on 27/07/2018 (For one year). And also the same tv was in use since one year.
After reacharging the system is not activated, screen showed as "account balance on not available_ displayed on the screen."
Registered mobile number, [protected]
Customer number, [protected]
Can you solve my issue as early as possible.
Kindly take my issue in your consideration and do the needful.