MakeMyTrip India — amount deducted twice but no refund for one transaction

Address:	Mumbai City, Maharashtra, 400013
Website:	www.makemytrip.com

I have booked flight through makemytrip app (Reference id:[protected] and for the same payment it has been deducted twice. One is successful and i cancelled that flight. That amount has been credited but the 2nd deducted amount has not been refunded.
I have confirmed the same with bank, they told it has been credited. Sr number for bank reference : sr[protected].