The caller with the number +61452561221 is likely a scammer, trying to obtain personal information or money by impersonating a representative from a legitimate institution, in this case, the National Australia Bank. The caller's tactic of using a delay before speaking and claiming to be from a well-known bank is a common technique used by scammers to gain the trust of their victims. The mention of a specific name, "Susan", is also an attempt to sound more genuine and build a false sense of legitimacy. However, the fact that the caller is trying to gather information or phish for sensitive data is a clear indication of a scam.
Caution is advised when dealing with unknown calls, as scammers often employ real people, automated calls, or text messages to swindle victims and gain access to their personal information or financial resources.
After answering the call, I heard a delayed message from a woman claiming to be from the National Australia Bank, which prompted me to hang up immediately.
Upon answering, there was a brief delay before a recorded message from a woman claiming to be Susan from the National Australia Bank played, prompting me to end the call immediately.