MakeMyTrip India — Customer support not received

Dear sir/ma’am,
I had made a flight booking from Bagdogra to Bengaluru 07/06/2022, however the booking failed on the MMT app, but the money was already deducted. I did not receive any mails or service related to the booking thus, I called the customer service immediately. The coaster care person assured me that the cost will be refunded however it’s still not refunded till now.
I tried to contact MMT later after 3 days but this time I was not connected to the Costumer care person as the automated system could not find any failed booking as ten hours had already been passed.
I humbly request MMT Customer Support to help me resolve the problem as I have been a punctual customer to MMT.
I am looking forward for your earliest response

Yours sincerely