Go Air — refund not received on cancellation of flight by airline

Address:

Mumbai City, Maharashtra, 400053

I had a goair flight on 19th march from mumbai to delhi. I received an email from the airline on 18th morning saying the flight is cancelled and i can get a full refund by calling their call centre. Their numbers do not work so i called goibibo through whom i had booked the tickets. Their ivr asked me to cancel the ticket. I did the same but have received a meagre refund from goibibo and nothing from go air even after writing to their grievance cell and nodal officer.