Called me twice in a row at about 8:30 pm. There is no business that needs to be calling me at this time of night

Caller: NAB

https://www.nab.com.au/about-us/corporate-governance/identity-protection/contact-us

Scam, said from NAB banking , about suspicious transactions

Called on a Sunday night at 8.30pm from this number and also SMS'd from 0439 357 801. Claimed there was a suspicious transaction on my Visa (and gave the last 4 numbers of the card), and to ring (03) 8903 9952, and select option 1 to fix. Yeah right.