ICICI Bank — Demat Charges

Address:

Mohali, Punjab, 160103

Within 2 year Rs.1000 has been deducted with note "DP CHGS" and during account opening I was not told about its charges.
I know it the representative's trick and obviously taught during their training program, what the hell a guy with mere 6K Salary will do with Demat account.

I also submitted a form for closing demat account in Phase 7, Mohali, but no avail and my account balance is went to 0 now.

Now tell me if I continue this account will the DP charges get deducted again?
Don't ask me to go to home branch. Banks have centralised Database, please check that and tell me the exact status of my account.