NAB complaint?

Do you have a dispute or a bad customer experience with NAB? Report it through our website to maximize the chance of getting it resolved.

We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.

The NAB customer service number in Australia is 13 22 65, and you can also contact NAB from the NAB app. NAB's feedback and complaints page, linked in the contact details at the top of this page, sets out the other ways to raise a complaint, and a NAB branch can also take one in person. Have your account details, the date and amount of the transaction or fee, and any earlier reference number ready.

Fee or card charge in dispute? Raise it here as well, and we push it out to NAB by email, social media and printed letters.

To escalate a complaint inside NAB, ask for it to be passed to a senior complaints team and for the complaint reference number, then put the complaint in writing through the feedback and complaints page or by letter to the registered office in Melbourne; the full address is in the contact details at the top of this page. Give your name, the account involved, what went wrong and when, every earlier reference number, and the exact outcome you want, such as a fee refunded or a transaction reversed.

Keep a copy of everything you send and ask NAB to confirm in writing who is handling the complaint.

Fee or decision you want reviewed? We help you write the escalation in minutes, with each statement line and reference number side by side.

To dispute a transaction with NAB, contact the bank on 13 22 65 or through the NAB app as soon as you spot it, and say whether it is unauthorised, a duplicate, the wrong amount, or a purchase that never arrived. If your card may be compromised, ask for it to be blocked or replaced at the same time. Have the statement line, the merchant name, and the date and amount ready, plus any receipts or emails from the merchant.

Ask for the dispute reference number and written confirmation, and check your next statements for any temporary credit and the final decision.

Yes: the Australian Financial Complaints Authority (AFCA) handles complaints in Australia from consumers and small businesses about financial firms that are its members, and NAB names AFCA as the external dispute resolution scheme for its customers. AFCA generally expects NAB to have had the chance to put things right first, so keep a record of every call, letter and reference number.

Transaction or charge in dispute? Bring it through our complaint process: our trained AI opens a case for you and keeps coaching on what to reply and when to push again.

Nothing has been reported about NAB here yet. Our research shows what typically goes wrong at Australia's big banks: card transactions customers did not make or cannot get reversed, payments sent to the wrong account, fees and interest that were not expected, home loan rate changes and discharge delays, and accounts frozen or restricted during security checks.

Transaction you did not make, or a fee you did not expect? Be the first to report it: your case opens the record for the next NAB customer in the same position.

Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of NAB through emails, social media, paper complaint letters and other tools at our disposal.

And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.

Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with NAB can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.