I called back the number (02) 8020 3533 and reached vm that said I reached Careflight

Caller: Child Fund Australia

Calling on behalf of Child Fund Australia. Never heard of them before now, and number doesn't match any on their website so how would you even know they're genuine?

Caller: Care Flight

I got 3 missed calls from this number. I just called the number back and got a message stating that I had contacted Care Flight. Theses are good guys.

Caller: Careflight

I already donate they were trying to get me to increase my payment

Caller: Care Flight

Called to thank me for my donations, and if I'd like to donate any more.

They’ve rung twice, I don’t answer if it’s a unknown number.
They never leave a voice mail message
which makes me think they are selling something

I called back the number (02) 8020 3533 and reached vm but couldn't hear the company name