Ibibo Group / Goibibo — i havent received my refund for international flight

My return flight was scheduled on 31st march but due to covid -19 it got cancelled. So i should be getting refund according to goibibo rules. I even contacted the airline which was british airway. But they told me that as i have booked through goibibo. I need to contact goibibo. And i was using their app.in that i only see old flight tickets. Originally my tickets were different and i got them rescheduled by paying 38, 000 rupees extra. But in app i am not able to see the rescheduled dates. Which is delaying my refund even more. I tried to call goibibo but no one pick up the call. I just need my refund my booking reference is jmv8qf.