Airtel — No service connection resolved since last 45 days

Even after several complaints since 19th september airtel broadband connection has not been resumed
- No superviser visited
-Forcing to upgrade it into fiber or connections are not being
-After each complaint they send a message that service has been resumed to close the case
-more than one month service is not being given and a bill has been provided for Rs 471
- complaint no[protected]
Never resolved and they keep on closing the case
When asked to disconnect the service they promise to resolve the issue which they never do