A technical issue has locked ANZ customers out of their accounts for about four hours, with the bank scrambling to get services back online.
A spokesperson for the bank confirmed the issue on Friday afternoon, saying it was affecting online banking, credit and debit card transactions, as well as ATM and branch services.
"A team of experts is working to resolve this as quickly as possible," a company spokesperson said.
Services were back up and running by 5pm AEST, with a "software issue" blamed for impacting a number of core systems from 1.37pm.
"As a result, multiple internal applications and customer facing channels, including our ANZ App, internet banking, credit/debit card transactions, ATMs, contact centres and branch services, became unavailable," the spokesperson said.
"We apologise for any disruption and inconvenience this is causing and want to reassure customers it is our absolute priority to resolve this."
Visa credit card transaction services are still affected, with credit customers advised to use debit card or cash instead.
Customers vented their frustration on the company's social media channels, with some taking the opportunity to advocate keeping cash as a payment option.
"Imagine when we are completely a cashless society …," one user said.
"Can't pay my rent that is due today! Cheers ANZ," said another.
