odd computer police voice message

Voice recording stating they're a prosecution department representing the Australian Tax Office, and to call number before a police officer turns up at my place of employment. Tried to return call... the number is disconnected.

A computer voice asking me to call their number

Phone robot pretending to be from the Aust Tax Office telling me to ring back on a certain number regarding a debt!!! SCAM SCAM SCAM

threatening messages

Seems to be a scam. Automated message about some ATO/Commonweath Bank bungle that requires "immediate attention" lest "you end up with a police officer at your door step"

Received phone call saying it was Commonwealth Bank and the Police will be on the front door if you don't call back.

some threatening public prosecutor message wanting money