mistake regarding DD

THEY CAN REFUSE TO ACCEPT. BCOZ ITS A MINOR MISTAKE. THEY ARE FOR OUR BENEFIT AND CAN NOT RUIN YOUR 6 MONTHS. SO CONCENTRATE ON STUDY

can someone tell me the last date for sending online forms...while filling the form it was given 11th september without late fee...so i thot i will send it on monday i.e. 7th..now th institute is telling last date is 7th septmber...even if i wana give late fee how will i give bcos while submitting form online i already paid 1700/- so hw can i pay the fine now....

lots  of thanx to you guys...