Yes, you can do this online here.
Or login and go to My Account > My Investments > Portfolio Actions > Investment Preferences.
You can also check your current bank account details.
To change these bank details:
Enter the last four (4) digits of your current bank account number.
Add the name of who holds this bank account in New Account Name
Enter the BSB
Enter the new account number
Scroll to the bottom of the page and click Save Preferences
You will be asked to verify using a code sent to either your mobile phone or email address.
We may also conduct a telephone call as an extra step of this verification process.