HDFC Bank — unblock pin

sir, this is sujith... i had taken my uncle hdfc card for online payment of gate 2010 application.. i entered the card number and expiry date and 3 digit pin beside signature.. and asked me to click on pay.. and after it asked me to enter password... by mistake i entered wrong password for 3 times.. the pin was blocked... what should i do to unblock it... did the money was detected from the account.... please let me know soon sir... plz plzzzzz