If your address, mobile phone number or email address change, you can update these in Westpac One®. Here's how:

  1. Once logged in to Westpac One® online banking, select 'Profile' (top right on a computer and on the App under the top left menu)
  2. Click 'Personal Details'
  3. If the details displayed are no longer correct, select 'Edit'
  4. For your security, you will need to answer one of your Online Guardian challenge questions before progressing
  5. Once answered correctly, enter your new details in the space provided
  6. Click 'Apply'.

Download the guide: How do I update my contact details in Westpac One?

Alternatively, you can call us on 0800 400 600. We’re available to help 7am – 8pm weekdays and 8am – 5pm weekends. To reach us faster, call from your registered mobile number or have your customer ID number ready. From overseas please call us on +64 9 912 8000 (international toll charges apply).