[Resolved]  ICICI Bank — smdb charges without notification

My account number is[protected] icici bank and using internet banking. I was busy in other things so i could not check balance regularly.. After some time i checked my account and to my surprise smdb charges were deducted from dec 2018 to mar 2019 including cost and sgst. That costed me more than 2000rupees.. I haven't received single notification about deducting this amount. I want an explanation about this..