Canara Bank — Auto debited around 5 times of Rs. 3493.71/- and made my balance to negative amount

Address:	400076
Website:	Directly from my account

My account auto debited around 5 times of Rs. 3493.71/- even if i didn't have that much account in my account. My balance became Rs. -2825.14/- which is not possible in any bank. I complained against this issue, but not yet resolve. Its been more that more that 3 months.