ICICI Bank — invalid deduction of money from my account

Address:

Akola, Maharashtra, 411005

I have been a customer to icici since last 5 years. Rs.708 has been deducted from my account today without any previous intimation to me. My account balance was less than rs.5000 for about 10 days. But the amount deducted is much more than it should be. And moreover i didn't get any call from the bank and directly the money got deducted. A bank like icici is not expected to do so with its customers.