Caller: Don't know

Its a scam for sure. I hung up quickly and blocked the number.
Then got SMS
'Please call AGL Gas Connection on 1800 680 430 regarding on the gas abolishment request at your property. Thank you'
Never had a gas connection. Typical poor English. lookups give no phone numbers for this company. A 1800 number, what a laugh.

They didn’t leave a message so I don’t answer

Caller: AGL

AGL are my gas retailer. They had previously called me to offer discounts on their electricity, which they then emailed to me. I compared them to my current provider - good, but not quite good enough. They have now called TWICE to see what I thought of their offer, TWICE I told them not as good as I currently have and TWICE they just hang up as soon as I say that. No niceties, like "thanks anyway" or "goodbye", just hang up. Very rude. I will probably change my gas retailer now if they are going to be so rude.

Caller: Called me

AGL

They never leave a message. I have no idea who this is so I refuse to answer calls from this number.