HDFC Bank — amb charge and debit card charge issue

Address: 561229

I am an hdfc bank customer since last 5 years, my a/c no is "[protected]"
My account was zero balance account. It was salary account. Recently i changed my job and my new company does not have tie up with hdfc bank.

However i always used to keep 10, 000 plus in my hdfc account. From month of august due to some urgency i utilised amount from hdfc and my balance became less than 10, 000/- (In thought my account is zero balance account).

Hdfc is chargeing me some approx 2017 rs from last one months.

They should have atleast intimate me by letter that my account is no more zero balance account.

Kindly returned my all money asap, because i am in now very difficult financial crisis.
My mail id : kss. [protected]@gmail.com

Thanks