Telstra is now working to fix issues that are affecting EFTPOS services around the country this afternoon.
Westpac Banking Corporation said on Twitter that some automatic teller machines in Sydney were down, while National Australia Bank Ltd and Commonwealth Bank of Australia also reported payment processing issues. "We're sorry for the impact and inconvenience caused", the spokesperson said.
Commonwealth Bank experienced problems with some of its merchant payment terminals, leaving some retailers unable to accept card payments. Many of our services are starting to restore. If you or your business are experiencing issues, tell us about it in the comments. However, it only appears to be affecting low-value transactions.
"We're sorry if this impacts you".
"We are experiencing higher than normal calls into our call centre".
The bank's ATMs are reportedly down in a number of locations around Australia, including in Sydney's CBD.
An ANZ spokesperson has confirmed it is also experiencing outages, suggesting the problem might be "telco-related", while a NAB spokesperson confirmed "sporadic outages" relating to Eftpos but not ATM services in New South Wales and Queensland.
People in Sydney, Melbourne, Brisbane and more had reported issues with withdrawing cash or using electronic payment services.
Commonwealth has released a statement on social media, informers customers that they are aware that their machines are flopping and they're doing their best to resolve the issue.
Retailers such as Woolworths are also reportedly being affected by the outage.
"My understanding is, and this is unconfirmed from Telstra, the Telstra COIN Network, which is what they call the payments network, has had an issue today".
The supermarket giant says a Telstra network issue means its stores are having to process payments manually.
Australia's four major banks had said some of their transaction-handling machines in stores were not working early on Thursday afternoon.