Setting Up and Managing NAB Merchant Facilities

A Practical Guide to NAB EFTPOS and Merchant Help Desk Services

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

Understanding NAB Merchant Facilities

Setting up a reliable payment system is a core requirement for running a business. When you operate a retail space or mobile service, accepting card payments through a NAB EFTPOS terminal allows you to serve customers efficiently. However, hardware glitches, internet connectivity drops, or portal login issues can occasionally disrupt your daily sales, leaving you looking for quick technical support.

Understanding how your merchant facilities operate and knowing how to contact the 24/7 merchant help desk ensures you can minimise downtime. Whether you are troubleshooting an Ingenico standalone terminal or resolving an account settlement delay, following the correct support process gets your payment flow back on track.

Key Information

Category Details
Support Methods Contact the 24/7 merchant help desk at 1300 369 852, or use the NAB Connect online portal.
Processing Time Standard technical support is immediate over the phone, while replacement terminals typically take one to two business days to arrive.
Eligibility Available to registered NAB business customers with active merchant facilities.
Key Requirements Your Merchant ID, Terminal ID, and the specific error code displayed on the machine.

Step-by-Step Guide to Contacting Support

When your EFTPOS terminal experiences a technical fault, preparing your information before contacting support speeds up the resolution. Here is how you generally proceed when requesting help desk assistance.

  1. Identify the terminal and error. Look at the screen and write down the exact error code or message. Note whether your terminal is standalone, mobile, or integrated with your point-of-sale software.
  2. Locate your merchant numbers. Find your Merchant ID and Terminal ID. These are typically printed on your daily settlement receipt or displayed on a sticker underneath the physical machine.
  3. Restart the device. Hold down the power button or press the specific reboot keys to perform a hard reset on the hardware.
  4. Call the help desk. If the reboot does not clear the error, dial 1300 369 852 to reach the 24/7 NAB Merchant Service Centre.
  5. Select the correct phone prompt. Choose the option that matches your setup, such as the prompt for standalone terminals or integrated systems, and provide your recorded IDs to the operator.

Troubleshooting Common Access Issues

Managing business payments means you might encounter occasional technical barriers.

  • MFA or login codes not arriving for NAB Connect. This generally happens due to a mobile network delay when you try to access your digital merchant portal. The simplest fix is to toggle your smartphone’s airplane mode on and off to reconnect to the nearest cell tower, then request a new code. If the message still fails to arrive, contact the help desk to verify your mobile number.
  • Terminal connectivity or app errors. A "Comms Error" on your EFTPOS machine means the device has lost its Wi-Fi or 4G connection to the bank's server. Try restarting the terminal and checking your local internet router. If your primary network remains down, connect the terminal to a mobile phone hotspot or call technical support for alternative communication methods.
  • Locked terminal or supervisor access issues. If you enter the incorrect supervisor PIN multiple times, or if the terminal takes a severe physical knock, an automated security "Tamper" lock will freeze the machine to protect cardholder data. You cannot bypass a tamper lock yourself. You must call the merchant help desk directly to organise a physical replacement terminal.

Pro-Tip: To keep your checkout running during an unexpected internet outage, pre-configure your smartphone's personal hotspot in the EFTPOS terminal's Wi-Fi settings. This allows you to quickly switch networks and continue processing card payments while your main broadband connection recovers.

Frequently Asked Questions

Why was my customer's card payment declined?

When a transaction fails, it is often due to insufficient funds in the customer's account, an expired card, or a temporary block placed by the issuing bank. The terminal processes this by returning a specific error code, such as '51 Insufficient Funds' or '05 Do Not Honour', rather than a network error. A limitation here is that you cannot override an issuer decline from your merchant terminal. Your practical next step is to ask the customer to check their banking app, provide an alternative payment method, or contact their own bank for clarification.

How do I order more paper rolls for my EFTPOS machine?

If you notice pink lines on your receipts, your terminal is running out of thermal paper. The bank provides automated ordering systems linked to your merchant account, but delivery logistics mean shipping takes a few business days. Waiting until you are completely out of paper will halt your printing capabilities entirely. To maintain your supply, you should log into the NAB Connect portal to request additional rolls or press the designated administration button on your terminal to submit a stationery request well before your current roll ends.

Why hasn't my daily settlement reached my business account?

At the end of trading, your terminal performs a batch settlement to transfer the day's card takings to your linked business account. Usually, if the terminal loses internet connection right at the scheduled automated settlement time, the batch will hold locally on the machine rather than sending the data to the bank. To resolve this, manually initiate the settlement process from the terminal's administration menu once the internet is restored, or contact the merchant help desk to push the batch through.

Official Bank Information

NAB

Support: 13 22 65

SWIFT Code: NATAAU33

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