I called back number (02) 8277 6584 reached voice mail for a company called ASC Volunteers Association.

Called and left no message

Block right after if you don't want to involve in online charity

Answered call to be hung up on. No message, no hello, no robot thing, nothing.

Received a call from this number today. When I called back, this was the recording that I heard - "You were called by the State Emergency Services Volunteers Association. We are currently conducting a raffle to raise money for the Association that represents the volunteers of the State Emergency Services. If you would like to speak to an operator, then please call 1300 707 344."

Called and left no message.