'Frustrating': Major bank outage leaves customers reeling

National Australia Bank (NAB) customers have been left reeling by an outage that has affected the bank’s online service.

The bank confirmed it was experiencing login errors on Twitter, and apologised for the issue.

“We're currently experiencing login errors with the NAB Mobile Banking app and Desktop Internet Banking. We’re working to fix this as soon as possible. We’re sorry for the inconvenience.”

NAB stated its merchant terminals, NAB Connect, NAB Telephone Banking and NAB Trade platform were also unavailable, but ATMs, NAB cards and Apple Pay were still working.

“We’re really sorry for the impact this is having,” the bank said. “We know this is not how anyone wants to start their Monday and we’re working to fix it as soon as possible.

A map from Down Detector shows every major Australian capital bar Darwin has been affected by the outage.

But Aussies have slammed the bank, saying they stand to lose thousands from the outage.

“This has been happening numerous times throughout the year with NAB...I trade equities for a living...I could be losing thousands today,” one user said.

Another Aussie said the outage had affected settlement for their new house.

Another said they could cop late fees from their bill providers.

The bank has not confirmed when it expects service to its online platforms to return.

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