Caller: Scammer impersonating Commonwealth Bank

Starts with automated message from "Commonwealth Bank" about a transaction - press 1 to speak to officer or press 2 to permit transaction. When spoke to someone - I asked them to send the secure token to my bank app. They said no token was needed. At that point I accused the caller of attempted scam fraud and that he would be reported. My bank has a token system to verify authenticity or otherwise of a call!