“Some automatic payments, direct debits and other payments between accounts are affected. Eftpos, debit and credit card payments are displaying as normal,” the bank added.
“We ask customers not to make corrective payments because we’ll be making the necessary fixes.”
“We’re looking into this with urgency and are very sorry for the inconvenience and confusion it may be causing.”
Westpac said it was communicating with customers across its website, Facebook page and “other channels” and would post updates.
Some Facebook users voiced dissatisfaction at the Westpac glitch.
One Facebook user said a payment made yesterday on behalf of a voluntary group had been taken out of her account twice.
“[I] feel for those people who may be in an extremely difficult position because of this,” she added.
Another person complained that their power had been disconnected due to their bill not being paid.
“Awesome Westpac my power bill was ment [sic] to get paid this morning and now because of this my power has been disconected due to no funds in my account put my money back in my account so I can pay for power.”
It’s not the first time the bank has suffered from technical issues.
Westpac suffered from a technology glitch over Christmas last year which meant that MasterCard credit and debit payments made on December 22 and 23 did not go through properly and were only processed a fortnight later.
Furious Westpac customers reported being suddenly left unexpectedly hundreds of dollars in overdraft, some saying they have barely enough money to pay for groceries.
Many said it would take months to get back into the black and said it was a dreadful way to start 2023.
Westpac apologised for leaving customers out of pocket after that.