State Bank Of India [SBI] — Problem in receiving top even after downloading sbi secure otp app

Address: Madhubani, Bihar, 847403

Website: www.sbicustomercare.in

Whenever i try to login my registered online netbanking, i always fail to transact desired operation. I don't get secured otp either through online or offline. I have downloaded the sbi secure otp app even after all these actions, i miserably fail to get otp. I had lodged complaints to sbi customer care at least twice, they responded after a week or so that my complaint has been attended to and assured me that i shall not feel any trouble from right now but it still persist.
Please help me to resolve my grievances!