St George, Bank of Melb and SAbank are all having problems because they are all basically the same bank, with different branding - Westpac.

Westpac updated their internal systems on Friday / over the weekend and stuffed up. Thats why those banks are having issues.

Commonwealth are not having problems, what is happening is some Westpac et al customers cannot withdraw through Commonwealth (and associated) ATMS.

Westpac has been having issues since Friday.

Paypal does not run off Westpacs internal systems. Its two completely different companies.

They are not even having the same issues as Westpac.

Paypal has only been having issues since 6am USA time yesterday.