ICICI Bank — I don't hold demat account but charge regardless

Address:	Pune, Maharashtra, 411041
Website:	Www.icicibank.com

I do not opened any demat account with icici bank but the amc charges are deducted from my salary account. When the money deducted i did not received any msg not even emil for this transaction. When i checked a statement there is irrelevant amount is deducted as dp charges then i called customer service executive he replied that you will not get the msg or mail for such tractions.
I have also sent an email to [protected]@icicibank.com about this, again i get the reply that charges are genuine. If i do not opened demat account from my end how do they changed?
This is not the case happened with me there are many people having same issue. I want my money back.