Nielit — nielit gorakhpur

I done a transaction towards fees payment of nielit CCC, though my money got deducted from my account but the transaction was shown unsuccessful, i contacted to my bank and they told me that the merchant i.e. nielit has confirmed that the transaction was successful, so where my money has gone, and if the transaction was successful then why I am not seeing fees confirmation on my application status at nielit.
Please Sir, help me, and help others also, as it is a kind of online scam which nielit is going through.