State Bank of India — Fraud by linking my saving bank account against unknown ecs mandate form citibank

Address: Indore, Madhya Pradesh, 452001

Website: onlinesbi.com

I have not give ecs mandate and 4000 is being debited on 7th of every month since feb 2017. Sbi gpo indore branch manager indore, madam surbhi, mr. Shrivastav chief manager all 3 are not responding to my complaint for past 1 month. They have not given me any proof of my ecs mandate, i do not know where this amount is being credited and they are unable to stop ecs. I have given written complaint on 9-march-2017