Caller: Said it was ANZ

Missed call, I called back (ANZ) and a man with a fake American accent immediately started asking account details.
Sorry mate, not giving you any info.
If it is the ANZ they should already know who they called.

Caller: (03) 8565 0019

Missed call > called back and claimed to be "ANZ Bank" automated messaging requesting input of CRN details, etc.
HOWEVER my mobile screen display had "(03) 8565 0019 Clayton" not ANZ.
Have received missed calls on two consecutive days.
I had no reason for ANZ to contact me unexpectedly. https://www.anz.com.au/security/fraud-detection/latest-security-alerts/

Caller: (03) 8565 0019

Today they rang to the office and asking for a colleague but days before I received silent calls from this number.

Received 3 calls and claimed to be from ANZ asking for my details. Told him he called so he should have my details and not wanting to speak with him and hung up.

This was originally in my dud-numbers group and has only started ringing again after a long time, it I have been getting a call from this number every day for the past several weeks, some times at the same time in morning for about 10 secs then hangs up I have not answered it.

I received about 5 - 10 calls per day from this number. I don't answer anymore as it was a silent call every time. It has become extremely annoying

You answer and no one is there this has happened a few times.

Nothing on the phone so i hung up

Missed call i called back and it said"ANZ Bank"