I do want to dispute a deal to my account. The way the... the way the transaction has prepared will determine how you can dispute the deal at issue. In case it is an unauthorised Visa deal, you will have to cancel your card straight away to stop further unauthorised transactions. Your card may be terminated through the ‘Card Management’ tab into the Cellphone App, by calling our consumer contact centre on 1300 651 400 during our hours of procedure (Monday to Friday 8.00am 5.30pm and Saturday 8.00am 1.00pm) or by calling 1300 731 144 away from ...