Looks like a classic automated phishing scam. The caller pretends to be from the Commonwealth Bank and tries to get you to press numbers on your keypad, which would let them hijack your debit card. Never give out PINs or authorisation codes over the phone unless you initiated the call and verified the number yourself. Hang up, block the number, and if you’re unsure, call the bank using the official contact details on their website. Keep an eye on your account for any unauthorised transactions and consider setting up extra security alerts.
An automated message pretended to be Commonwealth Bank, demanding debit‑card transaction approval via keypad input; the call originated to an Australian mobile.