Notify Westpac immediately on 0800 888 111 to have your Westpac Mastercard® on the device deactivated.

Your physical Westpac Mastercard will continue to work as normal; however, you will need to re-add the card to the Google Wallet™ app when you receive a new Android device.

You can also use Find My Device to find, lock or erase this device.

For more details, go to Keep your payment info safe - Google Pay Help