Choose a device
Follow the steps in one of the guides below to help you dispute a transaction you don’t recognise.
iOS
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1
Step 1
Log into the NAB app on your device.
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2
Step 2
Tap an account to view transactions.
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3
Step 3
Tap the eligible transaction you want to query.
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4
Step 4
View more details about the merchant like their website and location to help recognise the transaction.
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5
Step 5
If you (and any secondary card holders) don’t recognise the transaction, scroll down and tap Something not right?
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6
Step 6
Tap Dispute this transaction to start a dispute.
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Complete
Tap Get started and follow the prompts to lodge a dispute.
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Android
-
1
Step 1
Log into the NAB app on your device.
-
2
Step 2
Tap an account to view transactions.
-
3
Step 3
Tap the eligible transaction you want to query.
-
4
Step 4
View more details about the merchant like their website and location to help recognise the transaction.
-
5
Step 5
If you (and any secondary card holders) don’t recognise the transaction, scroll down and tap Something not right?
![]()
-
6
Step 6
Tap Dispute this transaction to start a dispute.
![]()
-
Complete
Tap Get started and follow the prompts to lodge a dispute.
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Desktop
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1
Step 1
Log into internet banking.
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2
Step 2
Click on an account to view transactions.
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3
Step 3
Click the eligible transaction you want to query.
-
4
Step 4
View more details about the merchant, like their website and location, to help recognise the transaction.
-
5
Step 5
If you (and any secondary card holders) don’t recognise the transaction, scroll down and click Dispute this transaction
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-
Complete
Click Get started and follow the prompts to lodge a dispute.
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Other recommended guides
Use our simple online banking guides to help you do your day-to-day banking anytime, anywhere.
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NAB Internet Banking and NAB app
Apologies but the Important Information section you are trying to view is not displaying properly at the moment. Please refresh the page or try again later.
These products are issued by National Australia Bank Limited.
NAB recommends you consider the NAB Internet Banking terms and conditions document, before making any decisions regarding this product.
The NAB Mobile Banking app is compatible with Android and iOS, minimum platform requirements apply. Android is a trademark of Google LLC. The Google Logo is a registered trademark of Google Inc. iOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.