Icici Direct — 826 rupees has been deducted from my account

Hi team,

826 rupees has been deducted from my account on 27th may 2020 as demat account charges. I have neither subscribed nor used my demat account till now. I only remember that one of sales guys cheated me while opening the account saying i will get a money refund if we open an account in icici. He never told me its demat account. I think they are doing it on very common basis.

I don't want it, and i got a call like this 3 to 4 times i told the same. I never used my demat account.

Also, i did not get any deduction message alert on my mobile which is registered with mobile banking with icici.

Mentioned the transaction remark - dmc/xxxx dp chgs

We trust icici. But this is kind of cheating is totally unacceptable. I know if i ask for a refund you guys will come up with your own # answers. I want an explanation and a refund immediately.