No idea who this is... although I've had a few missed calls every day for a week (since I went on the iSelect website, so I suspect it's insurance)

Amnesty International

I called back number (02) 9435 1351 reached voice mail for a company called 2 Evolve.

It's 2 Evolve. A professional fundraising company. They could be ringing on behalf of a wide range of organisations and charities.

Obviously a call centre - I've been getting regular calls, often about the same time of day & there's a 2nd number also from NSW. They never leave a voicemail. Wondering how long it'll take 'em to realise I don't answer unknown numbers. Oh & I'd say more likely to be Amnesty than iselect...

I received a call from this number and after saying hello was given abusive language with use of the 'f' word before I promptly hung up.

I called back number (02) 9435 1351 reached voice mail for a company called 2 Evolve.

No idea who it is. Tried returning the call deliberately after hours cause I don't need a sales pitch. Got a very vague voicemail.

Presume it's iSelect or someone trying to sell me something.

they say they are from Amnesty International but that's not the AI number