Just got a call from this number. I answered it hesitantly and it was some guy with an Australian accent talking about health insurance. Told him I wasn't interested and he let me go without any pushiness.
So I honestly can't say if it was scam or what. Maybe just cold calling... who knows?

Caller: I don’t know the number

They keep on calling me and I just let it go to voicemail

Received phone call from this number, but as it was not a familiar number, it was let go to the answering machine. No message was left.

Did not leave voicemail

And yet another scammer using 03 9022 with the last 4 digits changing on a daily basis. These calls come through as silenced calls, no messages are ever left and I just keep on blocking. Go away !

Caller: ‪(03) 9022 3288‬

No message left, unknown call

I suspect scam call. I didn't say hello as didn't recognise the number and did not want my voice recorded. They did not speak at all and hung up after a second or two.