How to cancel a transaction?
Unfortunately, we cannot cancel a charge that is on hold or has debited from your account. If a charge is on hold you will need to contact the merchant to see if they can reverse the charge.
If the charge has been debited, please contact us on 13 25 85, or send a secure message to raise a dispute. We will require the date of the transaction, the amount of transaction, and the merchant name. We recommend contacting the merchant by email so that there is written evidence if you need to dispute the charge.
https://www.beyondbank.com.au/need-help/how-to-cancel-a-transaction