Fraud - robotic voice pretending to be from ATO

SPAM!!!!
Robotic voice and left voicemail

Apparently the ATO have me on their fraud list but I can call another number for more info.
I actually DIDN'T come down in the last shower.

Claiming they are “investigating me and my family”
Sounds like scammers wanting me to call them back. Blocked instead

I returned the call and they hung up after I refused to give my name.

Caller: Tax Fraud Scammer

Automated voice left a voicemail, claiming I had "committed tax fraud". Demanded I call them back on an unofficial number (I checked). Appears to be the same voice used on a number of different, but slightly similar, numbers, so I presume it is the same people. Definitely a scam - do not call them.