HappyEasyGo — Refund not processed, Customer Care not responding

I had my GOAIR flight booked through happyeasygo with PNR YENUHK from Delhi to Hyderabad that was cancelled by GoAir and refund was sent by GoAir. I have been trying to reach HappEasyGo for the refund to be sent to my account, but no one is responding. I have been trying to reach them via call, mail, twitter but no one has been responding or picking up the calls.