MakeMyTrip India — Refund not being processed by MakeMyTrip

Address:

Gurgaon

I had booked 2 tickets to Japan (booking ID NN[protected].

"Your payment gateway has declined the refund initiated due to technical issues"
- This shows up on the page.

Have submitted bank details multiple times. Have tried emailing/calling - nothing. No response whatsoever.

I need help in understanding what are the legal steps I can take to get my money back or resolving this and receiving my money with interest.