When you log into Mobile Banking, you have four attempts to enter your Internet Banking password correctly. If you get it wrong four times in a row you’ll need to get your Internet Banking password reset. This will identify it’s really you, and let you choose a new password. All your other Internet Banking settings will stay the same.
Before you get your password reset, check you're entering your access number either as a continuous string of numbers, (eg 123456789), or groups of three numbers separated by dashes (eg 123-456-789).
Also check your caps lock isn’t on, as your password is case sensitive.