Unrecognised transactions

Ever noticed a transaction on your account that seemed out of place? It could be fraudulent, but many unrecognised transactions can be cleared up with a little investigation. Here’s how you can check:

  1. Ask any secondary cardholders if they’ve made a transaction you aren’t aware of.
  2. See if the merchant is legitimate by using the government’s ABN Lookup.
  3. Google the billing name on your statement because lots of businesses trade under a different name. If you know the merchant, the easiest way to dispute a transaction may be to get in touch with them directly. If you know the merchant but can’t contact them, you can submit a transaction dispute with our Dispute Team.

If you still can’t identify the transaction, it may be fraud. Our Fraud Team monitors your cards 24/7 for suspicious activity – and they’ll send you an SMS if they notice anything unusual. Sometimes a transaction that looks legitimate may have been made without your consent. If you think this is the case, call us.

NAB Fraud contact details

telephone banking
Contact details Contact hours
Personal banking within Australia Contact details

13 22 65

Quote 'Fraud Assist'

Contact hours 24 hours, 7 days
Business banking within Australia Contact details 13 10 12 Contact hours 24 hours, 7 days
Personal and business banking if you're overseas Contact details +61 3 8641 9083 Contact hours 24 hours, 7 days
Premium Card holders within Australia Contact details 1300 730 213 Contact hours 24 hours, 7 days
Premium Card holders if you're overseas Contact details +61 3 9322 6625 Contact hours 24 hours, 7 days
Signature Card holders within Australia Contact details 1300 489 410 Contact hours 24 hours, 7 days
Signature Card holders if you're overseas Contact details +61 3 9322 6624 Contact hours 24 hours, 7 days

Lost or stolen cards

If your card has been misplaced, lost or stolen, you have a range of options.

Credit Card Assistance

Type of fraud and scams

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If you’ve responded to a suspicious email or text message and provided banking details,
please call NAB on 13 22 65 immediately or visit your local branch.

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