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Lost and stolen credit cards

Lost or stolen credit cards

If your CommBank credit card is lost or stolen you need to tell us straight away. You can cancel your card and order a replacement in NetBank or the CommBank app. Alternatively; you can call us 24 hours a day, from anywhere in the world. We will get a replacement card to you as soon as possible.

If you don’t follow these steps you may be liable for unauthorised transactions.

Dispute a transaction
  • If your card is lost or stolen, you can cancel it and order a replacement in NetBank or the CommBank app. Once you have reported your card lost or stolen we will send a new card to you, and any additional cardholders, within seven working days. Once your new card arrives you and any additional cardholders will need to activate it and establish a new PIN, this can be done via NetBank or the CommBank app. 
  • If you think you may have simply misplaced your credit card, you can instantly apply a temporary lock^ to your card until you find it again all from within NetBank or the CommBank app. When you find your card again you can simply remove the lock. Alternatively, if you cannot find your card, you can cancel it in NetBank or the CommBank app or call us on 13 2221 or report the missing card at any branch during business hours.
  • If you need an emergency replacement credit card, call us on +61 2 9999 3283 and we will cancel it and put you in contact with MasterCard or Visa to organise a replacement card for you. If you’re in need of money, MasterCard or Visa can also arrange an emergency cash advance for you but this will incur interest.
  • You can still report the card as lost or stolen in NetBank or the CommBank app just like you would if you were in Australia. If you have an Australian address on NetBank but need a card sent to you while you’re overseas, please contact us so we can help arrange this. A $20.00 replacement fee will apply to cards sent overseas.
  • Alternatively, you can report the missing card at any time on the relevant number for your card or report the missing card at any financial institution displaying the MasterCard or Visa logo.
  • Once a CommBank credit card is reported missing, all cardholders (primary and additional) will receive a replacement card.  A cardholder still holding an existing card will need to destroy that card and use the replacement card. If you find the original card later, destroy it.

  • Report your missing card by making a reverse-charges call to +61 2 9999 3283
  • Report it at any local American Express Travel Services Office (not all offices can provide an emergency replacement card)

CBA cares about your card security - with a dedicated team of fraud detection analysts based in Australia, we monitor all transactions 24 hours a day and 7 seven days per week. To assist us in delivering a best in class service we use the latest in technology to ensure you have peace of mind knowing you are protected.

  • In the US, call toll free 1-800 627 8372 (1-800 MasterCard)
  • In any other country, call the operator and place a reverse charges call to +1 636 722 7111
  • Visit MasterCard for more information, including a list of toll-free numbers worldwide
  • MasterCard® Zero Liability gives you the peace of mind of free protection against fraudulent transactions made with your card. MasterCard cardholders are automatically covered for unauthorised transactions made using your card, in stores, online or over the phone

China - Telecom

10800 4400027

China - Netcom

10800 7440027


00800 4412 1092 

Hong Kong 

800 900 782 


001 803 44 1600 


800 781 769


00531 44 0022


1800 802 997

New Zealand

0508 600300


800 4481 250


001 800 441 3485


0800 1695189


1 866 765 9644

  • In any other country, call the operator and place a reverse charges call to +1 303 969 1090
  • Visa has more information, including a list of toll-free numbers worldwide 

^ When a temporary lock has been applied, all new transactions on the credit card will be declined except for: - transactions flagged as 'recurring', such as direct debits; - transactions not sent to us for authorisation; - assisted cash withdrawals via our branches; and - transfers or bill payments on your card via CommBank branches and phone, online and mobile banking.