[Resolved]  ICICI Bank — INR 826.0 0 got deducted from my account.

I have a Demat account in ICICI bank for 8 years now. When I checked my bank transactionsI found that there is one debit transaction as 'DMC/[protected] DP
CHGS TILL NOV-20' for INR 826.00'. When I created the Demat account, I was not told about the DP charges, it was told me by the ICICI representative that it is free of cost and it will never be charged and also I did not get any message alert in my mobile which is registered with mobile banking with ICICI.
Also, why it is getting deducted suddenly after 8 years. Why it was not deducted on yearly basis as I was under the impression that no charges will be taken by ICICI as it was told initially while opening the acount by ICICI representative.

My ICICI account number is[protected]. This is completely unacceptable and please refund my amount.