HDFC Bank — demat charges

Sir,
I have two saving a/c and Demat a/c in HDFC Bank due to some reason I have submitted the closure form for saving and demat a/c before complete one year but bank official hold my both closure form and many time I asked for closure of my a/c after that one month they proceed and ask me for pay Rs.885/- for demat AMC charges for both a/c whereas i have submitted my closure from before starting second year now bank official said first pay Rs.885/- then we process for closure demat and saving a/c, when we have not taken any service in second year