Kotak Mahindra Bank — Atm cw fee-dom

I have used the account of Kotak subh saving scheme, and using it since 2 years but i have seen my statement today found three times same amount of money has deducted three times in a day and then i started to go through all months status then found the same, such kind of deduction will make my account blank in near future and they will named it as ATMCW FEE-DOM, i wanna know how it is applied on any account and what is the rate of deduction and which type of service it is