MakeMyTrip India — Did not receive any refund

I booked a Jaisalmer package for 3 days in January. but due to Covid, flights got canceled. I approached MMT for a solution and I was promised that I would get approx. 90% of the booking amount as refund and was told by their customer representative that it will take 7-10 days. It has been more than 20 days and I have not gotten any refund amount. I am trying to reach out to the customer executive for an update, but I am not even getting any response now. Please help.