David Gray / Reuters

Angry Woolworths customers around Australia have been left out-of-pocket on Monday after being charged duplicate transactions following a "processing error" that copied payments made in stores in March. The data centre payment error generated by Woolworths' contracted payment processor company Cuscal saw extra money taken from the accounts of shoppers around the country, who then vented their frustrations on the Facebook page of the national supermarket giant.

In a statement provided to HuffPost Australia on Monday, Woolworths apologised for the incident and said all payment errors will be corrected and their customers will not be affected by any further, incorrect charges. "We have received confirmation from Cuscal, a payment processor servicing financial institutions, that due to a processing error at their data centre a limited number of Woolworths customers may have received incorrect transactions on accounts processed by Cuscal," the statement said. "Cuscal have confirmed they will rectify any payment errors as soon as possible and they have also confirmed that no impacted customer will incur incorrect charges related to the incident. "If customers have further concerns around their own personal financial circumstances, Cuscal encourages them to contact their local financial provider directly. We apologise for the inconvenience this has caused customers."