They keep calling and don't leave message so I ignore calls and suggest others do as well

Unsolicited marketing call.

I called back and it went to voice mail too, no company mentioned, sounds dodgey

Scam telemarketer

I don't trust it but I'm don't actually know as I haven't answered phone...I have had two missed calls and the number doesn't show up in Google as a business and it's not someone I know so I've blacklisted it.

Caller: Survey Hub

Some guy called "John" from Survey Hub saying I can earn $50 if I do a survey. They've been calling me for about 3 weeks from different numbers. When you ring back it's disconnected. You ask them to take your number off and they immediately hang up.

Got call from this number.
Rang foe a short time only.
Believe it is a scam

Caller: Market research

Rude