This number called yesterday 17 July at 10:31am from Melbourne.
Again, I didn't answer it and they never leave a message so now blocked.

This happened to me too, tried to call back immediately after they called. Said the number was disconnected.

Calls and doesn't leave a message. Scammer. Blocked.

Caller: Dont lnow

(03) 8804 5780 called 2X
First call left a message stating I'm on arrears and it will go to collection so I better arrange it 🤣 odd email address so reported n deleted.

2nd, no message so reported blocked and deleted

Rang them back and number had been disconnected immediately after calling me. Definitely a scam.

Caller: Australian Research Centre

Automated call saying they were from an "Australian Research Centre" calling people regarding government or something or other. I tried to look online for the company name they provided but found nothing, I do not believe it is a legit business and this is not the only time I have received the same call with the same recording. It is a possible nuisance call or scam, so be wary.

They called and only rang for a short period. No voicemail left - scam perhaps

Scam call no message

spam call
block and move on.