Goibibo — No refund of cancellation of flight

We have booked the Spicejet flight (PNR #EFU7GX) from pune to bagdodara via Gobibo. Due to Covid-19 issue in mar, 2020, we cancelled the flight from PUNE to Bagdidara on 20th Mar. The cancellation amount (Rs 10108) was refunded by Spicejet to Goibibo in Mar-2020 only. But Goibibo does not credited back to our account. Instead they shown it as credit voucher (Rs 8040) from spicejet which is valid only till 29th April, 2021.

Legally, they can not hold the amount and issue credit voucher on their own, if the flight operator has refunded the amount to them. This amount should be credited to our account directly.

Now we are unable to contact them and register our case. So need help to get the amount credited in our account instead of credit voucher.