If you notice a transaction on your NAB account that appears incorrect or unrecognized, the first step is to verify whether it is a legitimate purchase. Many transactions may appear differently on your statement due to the merchant’s trading name, or they may be pending payments that are yet to be fully processed. Reviewing your recent receipts or checking with authorized cardholders on your account can often resolve these inquiries without requiring a formal dispute.
For genuine billing issues, such as incorrect amounts or non-receipt of goods, the most efficient resolution is typically to contact the merchant directly. However, if you suspect unauthorized activity or fraud, you must notify the bank immediately. NAB provides specific digital tools and support channels to help you secure your account and initiate an investigation if a transaction is not yours or was not authorized by you.
| Category | Details |
|---|---|
| Methods | NAB Mobile App, NAB Internet Banking, Phone Support (Fraud) |
| Processing Time | Variable; typically several days to weeks depending on complexity |
| Eligibility | All NAB personal and business account holders |
| Key Requirements | Transaction date, description, amount, and relevant receipts |
Step-by-Step Guide to Disputing a Transaction
- Log into your NAB mobile app or Internet Banking to view your transaction history.
- If you suspect a transaction is incorrect, verify that it has fully processed; pending transactions cannot be disputed until they are finalized.
- If the transaction is a billing issue with a merchant, contact them directly to request a refund or clarification.
- If the merchant cannot resolve the issue, or if the transaction is unauthorized, select the specific transaction within your banking portal.
- Choose the 'Something not right?' or 'Dispute this transaction' option and follow the guided prompts to submit your claim.
- Record your dispute reference number and monitor your email for updates regarding the status of your investigation.
Troubleshooting Common Access Issues
1. MFA / Login Issues
- Cause: You cannot log in to your banking portal to raise a dispute because the multi-factor authentication (MFA) SMS is not arriving.
- Simple Fix: Wait two minutes and ensure your mobile device has a strong network signal before requesting a new code.
- Fallback Action: If you are reporting fraud, call the NAB Fraud team immediately on 13 22 65 (Option 3); they can secure your account without requiring an online login.
2. Browser or App Errors
- Cause: The 'Something not right?' link is unresponsive, often due to an outdated application version or cached browser data.
- Simple Fix: Update your NAB app via the app store, or clear your web browser’s cache and cookies to ensure the page loads the latest interface.
- Fallback Action: Switch to a different browser or device to complete your request, or call customer support if digital tools remain unavailable.
3. Locked Account / ID / Access Issues
- Cause: Your account is locked after incorrect login attempts, preventing access to the transaction dispute portal.
- Simple Fix: Use the self-service 'Forgot Password' or 'Reset Access' tools on the login screen to verify your identity and restore access.
- Fallback Action: Visit a local NAB branch with physical photo identification to have a banker assist you in unlocking your digital access safely.
Pro-Tip: Before raising a formal dispute for an unrecognized transaction, search the merchant name online. Often, a parent company name or a payment processor name (like PayPal or Shopify) will appear on your statement instead of the actual shop name. A quick search can reveal that the transaction is legitimate, saving you the time of a formal investigation.
Frequently Asked Questions
Q: Why do I need to contact the merchant before disputing a transaction?
Many transaction disputes arise from simple billing errors, such as duplicate charges or subscription renewals that the customer forgot to cancel. Merchants are often able to process a refund directly, which is the fastest way to resolve the issue. If you escalate to a bank dispute before speaking with the merchant, the bank may ask for evidence of your attempt to resolve it, which could delay the process. Always keep a record of your communication with the merchant for your files.
Q: What happens if I report a transaction as unauthorized?
When you report a transaction as unauthorized, the bank treats it as a potential security breach. NAB will typically place a block on your card or account to prevent further illicit activity while the investigation team reviews the case. You will be provided with a reference number, and the team will investigate whether the transaction meets the criteria for fraud under the ePayments Code. You will be notified of the outcome in writing once the review is complete.
