HDFC Bank — money got deducted without my knowledge

Address:

New Delhi, Delhi

In the name of net pi to hsl sec a/c .the amount of 1299 got deducted from my hdfc salary account and when i called the customer care executive, they said it deducted for your trading account but i never applied for it .At the time of opening that account, the representative didnt tell me the hidden charges and they make me sign on 4-5 pages and now they are saying that, by your side only the request of trading account is initiated.i want my money back