How to file a complaint and get quick results from NAB
How to submit a complaint with NAB
NAB makes it easy to raise a complaint using any of these trusted channels:
- 📞 Phone: Call NAB’s personal banking support on 13 22 65 (Mon–Fri 8am–7pm, Sat–Sun 9am–6pm AEST). For business issues, dial 13 10 12. Overseas? Use +61 3 8641 9083. Ask to lodge a complaint. If unresolved, you’ll be referred to NAB Resolve.
- 🌐 Online Form: Use NAB’s secure Feedback & Complaints form to submit a detailed complaint. It’s quick and tracks everything with a reference number.
- 🏦 In Person: Head to any NAB branch. Speak to staff or a manager, who can help log the issue or escalate it.
- 🔒 NAB Internet Banking/App: Log in and send a secure message outlining your issue. Handy for non-urgent complaints.
- 📬 By Mail: Write to NAB Resolve, Reply Paid 2870, Melbourne VIC 8060. Include relevant account info and contact details.
✅ You can also appoint someone (like a financial counsellor or family member) to complain on your behalf with your permission.
Here’s what to expect once your complaint is logged:
- 📩 Acknowledgement: You’ll receive a reference number (on the phone, via email, or by mail) so your case can be tracked.
- 🔍 Initial Review: Many issues (e.g., fee errors or tech glitches) are resolved at first contact. Otherwise, it’s escalated.
- 👤 NAB Resolve: Complex matters go to NAB’s internal complaints unit. A case manager will investigate and stay in touch.
- ⏱ Timelines: NAB aims to resolve most cases within 30 days. If it takes longer, they’ll update you every 10 business days.
- 📞 Resolution Contact: You’ll be notified by your preferred method with a clear explanation of whether your issue is fixed or further action is needed.
- 💬 Final Response: If you’re still not satisfied, NAB will explain how to escalate externally (like to AFCA).
💡 NAB says, “We want to resolve any problem you have,” and their structured process reflects that.
Common complaints against NAB
Here’s what customers most often raise with NAB:
- 🚫 Online/App Issues: Downtime, login failures, or incorrect balances - especially stressful during payment windows.
- 💳 Transaction Disputes: Fraud charges, double debits, or unhelpful chargeback outcomes.
- 🔐 Account Freezes: Funds blocked due to “suspicious activity” with limited communication.
- 📞 Service Experience: Long hold times, unreturned calls, or rude staff interactions.
- 💸 Fees & Charges: Unexpected or unexplained fees on closed or inactive accounts.
- 🏠 Loan/Mortgage Concerns: Delays, errors in repayments, or dissatisfaction with approvals.
- 🤝 Hardship Handling: Poor responses to financial hardship requests, an issue even ASIC has investigated.
- 🧾 Admin Errors: Mistakes in processing, account closures, or misdirected statements.
- 📢 Mis-selling & Advice: Past complaints about being sold unsuitable products or poor financial advice.
⚠️ Most of these can be fixed, but only if you raise them.

Got an issue with NAB? Send your complaint instantly!
Real NAB complaints and how they were resolved
💰 Frozen Account After Car Sale
- Issue: Large deposit flagged as suspicious. Account frozen without warning.
- Fix: After escalating to AFCA, NAB reviewed the case, unfroze funds, and apologised.
💳 $5,000 Fraud Charge Delayed
- Issue: Customer waited weeks for refund after disputed credit card fraud.
- Fix: NAB refunded the full amount + interest once the complaint was pushed up the chain.
💵 Account Fee Charged on Closed Account
- Issue: Ongoing monthly charges despite account being closed.
- Fix: Refunded $60 in fees and apologised within one week of complaint.
If NAB hasn’t resolved your issue:
- 📈 Escalate Internally
- Ask for a senior review or refer it to NAB Resolve.
- Mention the Customer Advocate if your issue reflects a bigger fairness concern.
- Ask for a senior review or refer it to NAB Resolve.
- 📬 Contact AFCA (Australian Financial Complaints Authority)
- Free, independent, and binding for NAB if you accept their outcome.
- Lodge if:
- 30 days pass with no resolution, or
- You’re not happy with NAB’s final response.
- 30 days pass with no resolution, or
- afca.org.au/make-a-complaint | 1800 931 678
- Free, independent, and binding for NAB if you accept their outcome.
- 🔍 Consider Other Regulators
- Privacy issue? → Contact OAIC
- Wider misconduct? → Notify ASIC or ACCC
- Privacy issue? → Contact OAIC
- ⚖️ Legal Advice & Tribunals
- If the matter is serious and unresolved by AFCA, small claims courts or community legal centres can help.
- If the matter is serious and unresolved by AFCA, small claims courts or community legal centres can help.
🧠 Tip: NAB pays a fee per AFCA complaint. so this option often sparks a faster fix.

Your main avenues:
- AFCA – Free, impartial dispute resolution.
Make a Complaint | 1800 931 678
Email: info@afca.org.au | Mail: GPO Box 3, Melbourne VIC 3001 - ASIC – Report systemic financial misconduct.
Submit to ASIC - ACCC – Lodge complaints about deceptive conduct or advertising.
Contact ACCC - OAIC – Handles privacy breach complaints.
Make a Privacy Complaint - Legal Aid & Counselling –
National Debt Helpline: 1800 007 007
Consumer Action Law Centre (VIC), Financial Rights Legal Centre (NSW)
💡 Most customers never need to escalate this far—but these bodies are here if you do.
- 🔗 Lodge a Complaint with NAB
- 📝 Online Feedback Form
- 📄 NAB Complaints Handling Guide (PDF)
- 📬 NAB Resolve: Reply Paid 2870, Melbourne VIC 8060
- 📞 NAB Phone Numbers:
- Personal: 13 22 65
- Business: 13 10 12
- Overseas: +61 3 8641 9083
- Personal: 13 22 65
- 👨⚖️ AFCA – Make a Complaint
- 🤝 Customer Advocate Office
- 🆘 General Help & Support
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