Caller: Greenpeace Survey

Raising awareness for environmental causes & Asking if i'd be interested in signing up for a donation plan

The call went to message bank, the person left a message of heavy breathing.

Call went to message bank, no message left.

Caller: 0489 965 743

Depressed breathing left as a voice mail, I suspect marketing person who hates their job.

2 Missed calls from this number - no message left

Caller asked to speak to [name]. I told them they had the wrong number. They apologised and hung up.

Caller: 0489 965 743

No msg left, called yesterday and today.

Answered call and asked to hold as driving then heard ringing tone at the other end then hung up.
Called back and had a message from Optus that the number had been disconnected then beeping sounds. It's a recorded Optus message.

Told me they are from Lifeline. When I told the lady caller that I have no idea what she is talking about she hung up. Clearly a scam call.

Called around 4pm on a Wednesday. I answered - all I could hear was breathing, until the caller hung up about 5-10 seconds later.

Caller: Greenpeace wanting donation signup

They're very persistent.
Call centre for non-profit

Not sure but my true caller points out to be spam call from greenpeace