Spam call

Sounds like arrest phone call. Like spam call

Caller: Bryan Cooper

Claims to be officer at ATO
Asks for making immediate confidential payment on phone

Caller: Bryan Cooper

He claims to be from ATO
Is this a fake call?

Caller: Fake ATO call

Automated call from 'fake' ATO informing of large debt and need to return the call on this number

This is a scam. They threaten first tell you there are some debts owing from the Tax Office and then tell you if you don't get back to them warrants will be issued against you.
I rang the police to double check there was nothing against my name(which I was certain there wasn't) and it was clear. The police informed me they are trying to get your personal details so they can get money out of you. Block or ignore the calls.