DRDO — Payment deducted from my account and shows unsuccessful

Dear Sir,
on 09/11/2022, i made payment to DRDO Ceptam-9 Recruitment online through platinum card sum of rs.100 . First Time I paid the fee, then it showed the transaction failed but amount was deducted in my account. i waited upto now as they refund my amount but it was not refunded.
so please refund my amount.