State Bank of India — Failed to cancel ECS even after home loan was fully paid

I closed my homeloan on March 2021 paying the complete outstanding amount and got confirmation from Bank saying the loan is closed. But the bank failed to close the ECS as part of EMI payment and try to recover emi during the month of April & May 2021. As i was not maintaining fund in that account anymore, the ECS got rejected and a fine of 590 INR has been deducted from my account for 2 consecutive months. After continuous follow up with SBI, I got confirmation saying the ECS has been cancelled.
But I would request SBI to credit the penalty amount (1180INR) back to my account.