MakeMyTrip India — Refund not received Customer care closing the complaint without resolution

Website:

www.makemytrip.com

Have been a MMT customer for more than 10 years and the experience has always been great. However, last one year of follow up with MMT has really left me disappointed.
I had 2 bookings made at Makemytrip for travel in March 2020 with trip IDs NF[protected] for GoAir flight booking from Mumbai to Goa for 4 passengers spending Rs.10392 and NF[protected] for Air India flight booking from Mumbai to Goa for 3 passengers spending Rs.4142.
Due to Covid, the flights did not operate and I understand the refund has been issued by the respective airlines to MMT. However MMT is not following the due diligence in crediting the amount back to the customers.
I have been following up and lodged several complaints with MMT in the app or email with no response whatsoever until early this year. Around March 2021, they responded saying the refund is processed in the wallet which did show up. There was an option to transfer the money to original payment mode which I opted for, but it seems according to MMT, there is a "Technical" error due to which the payment could not be processed. There was an option to provide bank details which I opted, but to complete the same, we have to input an OTP which is never received or may be MMT doesn't send it at all. I tried this for about 2 months.
Lastly as I was not getting OTP again, used the option to transfer the wallet amount to original payment mode. This time the money went from my wallet, but it never reached my account. It is more than one and half month, every complaint registered by me is closed by MMT without any response.
MMT is available for taking fresh bookings, but their customer care team is not available to respond to queries like this.
I really feel MMT should do something and revert.