State Bank Of India [SBI] — need to close my sb account

Address: Chennai, Tamil Nadu, 600013

Website: www.sbi.co.in

Need to close my sb account in sbi. First time, manager asked to convert my account into tiny account because its zero balance account. 2 hours spent signed forms and submitted to manager. After few days, i got mail that my account balance is low and i have to maintain minimum balance of 5k in my account to avoid charges. Visited branch again, manager said cant convert my account into tiny account because of system error. I asked to close the account but manager told me to create new tiny account and close old account. I don't want sbi account pls give a solution to close my account. Thanks in advance. Account opening and closing takes unnecessary waste of time