Standard Chartered Bank — mab charges

Address:	Pune, Maharashtra, 411006
Website:	ibank.standardchartered.co.in

I was having salary account in kalyani nagar pune branch. As i left the job, i requested kalyani nagar branch to close my account, they told me convert it into zero balance current account, no mab charges will be deducted, so i agreed to same and fill the form. Now they are deducting mab charges, due to which i am getting the message of negative balance. Inspite of complaining two times on customer complaint forum, they are still deducting the charges. Please do solve my issue at earliest as it is affecting my cibil score.