On 10/04/19 at 1238hrs I received a telephone call from a pre-recorded male computerized voice "claiming" to be the Australian Taxation Office. I never heard the end of the message as I hung up & subsequently blocked this number as soon as I heard "this is a final notice for outstanding debt..."

Spam call, pretending call from Australian Taxation to deceive and gain your money. Please ignore or hang up do not respond

No human only a recorded message saying that was Australian Tax dept about outstanding return. Ignored.

I called back number (02) 6216 1880 rang once then gets disconnected automatically.

Pre-recorded message claiming to be the ATO saying this is your final notice for unpaid tax or the like.