MakeMyTrip India — refund not yet processed

I had booked a bus through make my trip id using net banking. I had selected the seat number and filled my details amd proceeded it for payment. Firstly the amount 678 was deducted from my account and atlast it says your payment was failure. Am in a hurry so i rebooked the same seat by the above mentioned procedures and my payment was successful. I got a message from make my trip said that my refund is processing and it will be reflect on your bank account but the thing is the amount is not yet refunded and the customer care is not properly responding for the issue.