ICICI Bank — inappropriate ecs return charges

I have been unknown of ecs return charges till it got deducted from my account yesterday. Neither bank nor client party (Mutual fund sip) informed me about charges, so i had taken it as for granted and thought not go for investment this month. But then yesterday (18/11/2017) bank has deducted 400+36+36+400+36+36=944. I. E charged twice for a single ecs return. That is again quite unacceptable. I am a student and it is my hard earned saving that icici is looting in the name of penalties and charges by keeping me unaware of those charges upfront. I request icici by this platform to kindly refund my money in full and in further arbitration to be clear and transparent for any services charges and penalties for any service upfront. It is my hard saved money and means a lot to me. Kindly refund.
Kindly to revert at "[protected]@gmail.com" or "[protected]@gmail.com"