ICICI Bank — ICICI Bank Fraud deduction from my bank account of Rs.826 (2times) & Rs.68.83 mentioning DMC/DP charges

Hi,
This is Akash Rai, there was some deduction happened from my bank account against DMC/DP charges.

The details of the deductions are as below:-
1. ₹826 on 25/11/2021
2. ₹68.93 on 25/10/2021
3. ₹826 on 24/11/2022

Kindly let me know why this deduction has been happened ? as I have never activated and used my demat account and most importantly i don't even know that i hold a demat account. I have not raised any request for activation of my Demat account in ICICI direct & also i have not done any stock trading from icici direct.
There was no prior notice of deduction and i haven't received any deduction message.
Even i am sending mails to icicidirect on [protected]@icicidirect.com but not getting any positive response from last one year.

Kindly look into this matter and do the needful at the earliest by returning my money back to my account.

Thanks and Regards
Akash Rai