What is the BNZ fraud helpline number?

BNZ lists these numbers on its own website: Fraud, lost or stolen card: 0800 735 901 (24/7, including public holidays); From overseas: +64 4 473 5901 (24/7). Always dial the number printed on your card or shown in the official app if you are unsure.

How do I report fraud to BNZ?

Call BNZ's official line, or report it in the app or online: BNZ app: block your cards or lock online banking.. Tell them the amount, the time and the account the money went to, and ask them to block your card or the payment.

What if BNZ will not help or refund me?

In New Zealand you can complain to Banking Ombudsman Scheme. Details of what each one handles are on this page.

Bank Fraud Help · New Zealand

BNZ Fraud: How to Report It and Stop the Money

If money left your BNZ account without your permission, or you paid a scammer, contact BNZ straight away and ask it to block the payment and your card. The first minutes matter most.

Do this first

Call BNZ’s official line below, or use help inside the official BNZ app. Never use a number from a text, a caller or a search result.
Give them the transaction details (amount, time, and the account or number you paid) and ask them to block your card and stop or recall the payment.
Change your online banking password and PIN if anyone may know them. BNZ will never ask for your PIN, password or a one-time code.
Report it to the police too: see who handles cybercrime in New Zealand, and keep screenshots of every message and payment.

Official BNZ fraud contacts

BNZ

Bank

Fraud, lost or stolen card:0800 735 901(24/7, including public holidays)
From overseas:+64 4 473 5901(24/7)

App or online: BNZ app: block your cards or lock online banking.

Report phishing: [email protected]

Source: BNZ official page

Know this about New Zealand

We could not verify contact numbers for ASB, Westpac or Kiwibank. Use the number on the back of your card or in the bank's official app.

If BNZ won’t help

Banking Ombudsman Scheme

Free, independent help with complaints about banks that belong to the scheme.

Complain to your bank in writing first. If it is not resolved, contact the Ombudsman on 0800 805 950 or [email protected].

Official website

Your rights as a BNZ customer in New Zealand

Code of Banking Practice scam protections (industry code). Since 30 November 2025, banks' Code of Banking Practice includes five scam-protection commitments. It is an industry code, not a law: you get compensation only if your bank failed one of these commitments. Source

Report it to the police too

Cybercrime agencies in New Zealand lists who to report to, and our step-by-step guide covers the rest: How to Report Cybercrime in New Zealand (and Get Your Money Back).

Common questions about BNZ fraud

What is the BNZ fraud helpline number?: BNZ lists these numbers on its own website: Fraud, lost or stolen card: 0800 735 901 (24/7, including public holidays); From overseas: +64 4 473 5901 (24/7). Always dial the number printed on your card or shown in the official app if you are unsure.
How do I report fraud to BNZ?: Call BNZ's official line, or report it in the app or online: BNZ app: block your cards or lock online banking.. Tell them the amount, the time and the account the money went to, and ask them to block your card or the payment.
What if BNZ will not help or refund me?: In New Zealand you can complain to Banking Ombudsman Scheme. Details of what each one handles are on this page.

Other providers in New Zealand

ANZ New Zealand

These contacts were read on BNZ’s own website on 3 October 2026. If a number has changed, use the one in the official app and tell us. Ministry of Cyber Affairs is not BNZ and cannot recover money. All New Zealand providers are in Bank Fraud Help: New Zealand.