State Bank Of India [SBI] — State Bank Of India [SBI] internet banking user id deactivated without any notice or any reason

I am kavita meena having sbi online internet banking account ending with 7745. My branch is at alwar, rajasthan with ifsc code as sbin0031051 .Till July i was able to access my account using my net banking facility. But from wnd of july, i am unable to login to my net banking using my id and password. It's giving the error that my user id has been deactivated. No sms. No email alert. Nothing. Simply deactivated without informing me that the user id has been deactivate. I contacted the branch manager, customer care all of whom gave me the same reply "we don't know the reason why the user id is deactivated". I was asked to fill up a form in the branch stating my user name and my account id and was told that the user id will be activated within 24 hrs. Now it's 2 weeks and yet no action has been taken. Multiple follow ups and calls yielded no result. Even when trying to use the forgot username link, the system is not taking my cif number as invalid.

Please help me getting my user id activated, or one fine day i might find my account non-existing in their database and all my savings sucked into black hole.