Help & support
Securely lock your CommBank Debit Mastercard or your CommBank Business Visa Debit Card when you need to and unlock it again when you don’t. You can use card locks to help protect your account, manage certain types of transactions or support your spending decisions.1
If you’re not already registered for NetBank, you can register now
1 Locks don’t apply to transactions that are flagged as recurring (e.g. direct debits) and transactions not sent to us for authorisation. This also includes transactions made using Tap & Pay set up on a compatible smartphone, digital wallet transactions (such as Apple Pay and Google Pay), and some online transactions where the merchant has stored your card details.
Some transactions made in CommBank branches, telephone, online or mobile banking including transfers to other accounts, bill payments, and assisted cash withdrawals are also excluded. Other conditions apply. Refer to the Electronic Banking Terms and Conditions or the CommBank App Terms and Conditions for more information.
The Electronic Banking Terms and Conditions apply whenever you access your account electronically (for example using electronic equipment and/or device to perform a transaction or access a service).
The CommBank app terms and conditions are available on the CommBank app. The CommBank app is free to download however your mobile network provider charges you for accessing data on your phone. Find out about the minimum operating system requirements on the CommBank app page. Terms and conditions are available on the app. NetBank access with NetCode SMS is required.
Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.