Hung up as soon as I answered.

Sounded like a charity PYC or something so I hung up

Caller: Scam

Is a scam they try n use Ur voice wen U leave a message for other Id purposes so don't ring bak or leave a message just block the number

they called , I let it ringout and they did not leave a message. probably just another charity who call around to ask for more money. Once your number is given to any charity , it gets on-sold, and ends up who knows where. totally annoying behaviour.

No message left so I don't call back.

NOT SURE! Called me on Mon 28th June, Sydney NSW time. I googled, can't see any details. They didn't leave a voicemail. When i called back it rang once, then went to an answering/voicemail system. The voice sounds semi professional but the background music sounds crappy and not very legit. The voice-over tells you to leave your name + number, but does NOT say who they are or what company.

I hung up.

I'd BE WARY if I were you.