GoAir — goair requesting refund

I had booked flight on go air flight g8153 having pnr c3byfi, flight departure date was 22 march 2020
Unfortunately, because of covid-19 this flight was cancelled but i didn’t receive any email or sms notification yet.
After the flight was cancelled i had contacted contacted customer care and they promised me to refund the amount but i dint get any refund amount. Still am waiting for the refund and now customer care number, emails even nodel officer, appell authority not responding,
Requesting to refund the amount as possible
And i don’t want the free rescheduling because i have already reached the destionation by alternative means.
Kindly refund the amount