Make My Trip — refund amount not credited

We have booked air asia air ticket to travel from cochin to vizag on 1st april. Due to covid, flight was cancelled and airlines refunded the amount on 13th april to makemytrip as we have booked the ticket from makemytrip. Now this agency is not crediting the amount to my account. They are not taking any calls and no response. When airlines has given the money back then what is the problem of makemytrip to credit the refund amount to my account.. At this point of time single penny is important and government is directing to initiate the refund, these third party agencies are cheating the customers... Kindly dgca or any other appropriate authority has to take strict against these agencies and see that refund amount is crediting back to customer accounts