Ibibo Group / Goibibo — Refund of Airfare - Spicejet

I had booked the tickets through Goibibo. PNR Number of Spicejet is XF836N. The airline cancelled the flight during April 2020 and initially put the money in the credit shell. After my request, they had initiated the refund through Goibibo. Now Goibibo folks are not responding to emails or calls. Their automated call disconnects after a few minutes. Their website page for refunds does not accept any request. While the airline has refunded the amount, Goibibo is refusing.