Standard Chartered Bank — Charges on my bank account because of their bank representative irresponsibility

Address:

Sadashivnagar bangalore

I have an account with Standard Chartered Bank. I had walked in to SCB for ECS cancellation on my account and I was advised to just fill one form to cancel ECS and I did, I was informed that ECS will be cancelled and not to worry but later again I had ECS charges on my account. When I called SCB, they told that they can't cancel ECS as ECS Debits can be on multiple dates in a month and they said I was supposed to fill multiple forms for those specific dates hence there was debits. Am I the bank rep to know the process or Is it the bank representative's responsibility to let me know what has to be done to stop ECS charges ony account? Received call from bank manager of SCB Sadashivnagar but I doubt he was a manager, based on the way of his communication skils. I had sent an email to all the teams possible in SCB like priority head and grivience team in November 2022 but still I haven't received a proper response yet. Is this kind of service they provide to their customers. Worst experience I have ever had with banking