Billdesk — payment debited but says aborted

While registering for nptel exam after entering otp for payment it showed a blank page with page error. Got an email from nptel stating the confirmation of successful payment of exam registration fees and money was also deducted from bank. But on the nptel course page my course is being shown in "unpaid" list and payment status is "payment_initiated". Please look into this matter as most urgent as the deadline for nptel payment is 10 a. M. 16th march. So if the previous payment was actually not successful and it will be refunded then i have to make another successful payment within 10 am 16th march.