IIBF — Account debited butmsg rcd by bill desk as error in processing the transaction

Address:

Chittoor, Andhra Pradesh

Dear Sir, On 23.08.2015 i made online fee payment for iibf exam of Rs.2736/- through my sbm Debit card. My transaction was failed with error "Reasons: sorry!We are unable to process your transaction.Please contact us at [protected]@billdesk.com for any queries". But the payment is done successfully and the amount is debited from my account.So what should I do now? .please reply me at my e-mail mentioned below.