ICICI Direct — closure of account and charges levied incorrectly even after submitting the closure

I have been struggling with the icici dircet team for almost a year now. I had submitted the closure letter to the direct office in nalalkunta in hyderabad in 2010 june. The manager there said he will close the account but never did and i got debited for the annual charges which i noticed only in dec, 2017.

How do i know, a disoriented manager will not close my account. The idirect team is asking me for a prroof. Who in the world will keeo a receipt from 8 years ago? Well i gave up on that.

I had a series our emails from the idirect folks who seem to be good for nothing as no action has been taken on the closure after multiple emails and sending the clsoure letter 4 times on emails as i am in the us. I got a confirmation that the demat account was closed.
Again in dec 2018, i got a charge of rs.826 for maintainence.
Why should i pay this when i ahve been asking you guys to close my account since the beginning of last year.

I have all the emails with me and woudl file a legal case when i am back to india in 2019 and will ensure i am compensated for the mental agony and the unwarranted charges.