Ibibo Group / Goibibo — Flight cancellation refund - Hyderabad to Dublin 25th Jan 2021

I had booked the flight from Hyderabad to Dublin via London for 25th Jan. But Later I came to know that flight from London to Dublin got cancelled by Airline and I then rescheduled for another flight on same day.
Again after few days I came to know from Airline website that flight BA-276 Hyderabad to London flight is cancelled . For that I have been asking goibibo to confirm whether its operational or not, but they never responded with answer. Even I raised a request for refund as the flight got cancelled from Airline. But after 25th Jan, Goibibo App doesn't showing my refund request also .
Kindly help in this .