I called back number (03) 8658 9013 was put on hold music but no one answered the call.

They called to ask if I was the homeowner and wanted to change my hot water service. This is the second number from the same place. Other phone number was (03) 8658 9045. Now both numbers are on my forever growing Blocked Caller list.
And while typing this, yet another call, this time from (03) 4250 9671 (name Steve) about Solar. This too is now added to my blocked list.

Scam when you don't answer call it goes to messages but no message left.

Caller: Indian scammer

Another “government rebate hot water system” upgrade scam

Went to voicemail- didn’t leave a message

money scam