OXFAM Australia telemarketer

Missed call on mobile 10 Jan 2017 12.03pm. I don't call back missed calls as I assume is marketing of some sort but I do use this website to look for the number so thanks for this.

I have had this call every day for the past month. Rang back and it rang out

spam call

No sooner did I let the call from them on my house phone ring out than the mobile rang with the same number.
I presume these calls are from telemarketers conducting a 'survey' or they'd be in breach of the Do Not Call Register guidelines.
If you do answer, they never talk so one can only presume it's an autobot setting up for the real call later. I'm not that stupid! If you call at that time again I definitely won't answer.

Tried to call them back and got a message saying not available, hard to hear the name but something like "To Evolve"

Telemarketer/fundraiser 2evolve
Call back always goes to recorded message.