You need to be registered for SMS Security before you can pre-authenticate billers.

To pre-authenticate a biller is to use an SMS code to authorise them as a biller you trust. Once you pre-authenticate a biller, you do not require an SMS code when you make subsequent payments to them, instead you will authorise your instruction using only your Internet Banking password.

A pre-authenticated biller is indicated by a tick ( ) in your biller list.