MakeMyTrip India — refund of the amount in mmt gift voucher

I was trying to book a flight from mumbai to chennai for 3 persons. While on payment page, i had applied the below vouchers and it got successfully redeemed. But while paying the remainder of the amount (Which was approx. 5611/-), my page got errored out and i was asked to re-try again.

Now when i did the entire booking again, it shows the actual amount and the vouchers balance is shown as 0. Please refund the gift voucher amount at the earliest so that i complete my flight booking.

Voucher details:
Voucher number voucher pin amount expiry date
[protected] 802855 2000 [protected]
[protected] 821915 2000 [protected]
[protected] 892422 2000 [protected]