HDFC Securities — Deduction of rs 885 as depository charges

Hi,
This is to inform you that today from my saving account rs 885 got deducted as depository charges .however I was not using my demat account from long time and it was inactive. I was unable to do log in as well.i called customer care but they provided me another no which was unavailable.
First they call and say to open demat account for free and request u to make a transaction of any rs. Then then after years they deduct charges as depository charges.
As my account was inactive so I want my money to be refunded .