Received a call, computer generated voice, claimed to be the ATO concerning missing info about me, requested that I call back. Likely a scam - I'm not going to volunteer my tax details. From other comments for this number, looks like they're trying various ways to worry you into phoning back.

No details - left a message to say a “loss was recorded against this number”.

Receive call from this number saying they were the ATO.
Said I have a legal case again me, did I know about it.
I called them back on the number and tried to talk to them but very difficult to hear their audio was quite poor and their accents were very difficult to understand.