You've got two options:

  1. If you think you've misplaced it, place a temporary block on it in Westpac One®
  2. If you've lost it or it has been stolen, you can use Westpac One to block the card permanently.

When you find the device, you can unblock it or if you get a new device you will need to download Westpac Pay and re-add your card. The same liability rules also apply. The good news is that your physical card will still work while your device card is temporarily or permanently blocked.