called back the voice mail said they were from Charity Prime

Called and when I picked up the receiver (but didn't speak) the line went dead...nobody spoke.
Similar experience with (03) 4100 0109 last evening

"Charity Prime" is not a "non-profit" but one of the names, including "Charity Choice" that utterly relentless scammers have been using for a long time to try to fleece innocent people of their money. They have used several different series of similar numbers, numbers starting with (03) 41000 apparently the most recent. I never answer calls from unknown numbers - no one should these days - but have had recent calls from (03) 4100 0902 and (03) 4100 0911. When the answering machine kicks in, they hang up.
If anyone actually responds to these scam calls and is told that the lowlife is calling from "Charity Prime", please hang up and report it both here and to Scamwatch.

Received a call from this number. Not recognised and therefore I did not pick up. Of course no message was left. Not at all surprised to see it reported previously here

Missed call from this number then straight away from an alternate number (03) 4100 0915 same scam