Keeps calling but never leaves a message. Have no idea who it is.

Keeps ringing and shows as suspected SPAM on my phone.

Caller: Annoying caller ..

Possible scam . I spammed.them.
Keeps calling . Comes up as Spam . Fakk

I am finding missed calls from this number on my mobile almost daily for several months now. Sometimes more than once. I didn't call back. My phone says the origin of the call is "unknown" though the number appears Australian as it doesn't have any dialing code in front of it. Definitely sus. No message or SMS left so it mustn't be important.

Caller: Lifestyle Survey

Called to tell me i had entered a survey (I hadn't) about being a homeowner. Then said I would get t a $200 gift card to answer some questions and listen to some speech. I told him it seemed suspicious as I'd never entered the survey and he went on to abuse me. I googled his number and nothing came up. He wouldn't tell me the company name.

Possible spam - keeps calling and no message left, so have blocked

Number calls repeatedly over weeks. Does not leave a message.