They were saying they were messaging me from NAB and to call them if I didn't recognise the payment

SCAM

text from ANZ alerts to say someone had logged into my account from New Zealand and to call this number

ANZ ALERTS: A login was made from Location: Auckland, NZ. If this was NOT you, please contact us urgently oN (03) 5294 0432 REF:QR0###

Text claiming to be from ANZ-ALERTS that an amount to be paid to AirBnb. My guess is this is a virtual number that gets reused by scammers a lot.

Caller: Phishing Scam

SMS from NAB. Looked legit but I sensed it was not a number they'd have you call back on.

Message - NAB: A new device has been registered for mobile banking. If this was NOT you, please call us immediately on (03) 5294 0432 REF:Q977###

From someone posing to be NAB bank, saying pay ID and amount to someone I don't know is on hold.

Computerised voice stating imminent arrest if ATO tax bill wasn't paid.

I missed the call so I called back. claimed they were from ACO. I asked them to repeat it to make sure it was right. When I asked who they were, he said tax office. I asked further questions as to why the tax office will be calling me and I git an angry response asking me "why all the questions?" I replied I want to know why I was being called. They just hang up on me.

Caller: Alleged Taxation Department

Recorded voice says they are Tax department (American accent), and if you dont ring them back they will issue arrest warrant.