Sun Direct — cash debited from account, not activated dish connection

From my accnt on 25/04/2017 i recharged my sun direct dish [protected] via net banking for rs 155. But not activated. I contacted my bank branch they said cash was creditted merchants accnt. I contacted several times sun direct cu care by phone, they said no such amount creditted for recharging dish. My request after 5 month is refunding my cash 155.