Purvanchal Vidyut Vitran Nigam Limited — customer care service not responding

Recently i dialed the customer support number [protected]. I waited around 15 minutes to get connected with the support executive. The person who received the call for support listened to the query, he disconnected the call immediately after listening to the query. Such poor response they are giving, it is showing how irresponsible they are.
I don't think such customer support service will help people to resolve their problems.