I have registered at cpmstar.com 2 weeks ago and my site is still not being reviewed, I also contact them 3 times and I didn't get a reply. are they busy? scam? fake? why are not they replying?
I have signed up with them too like 2 months ago and I never heard back from them and they did not respond to any of my messages, so all I can tell you from my experience is that they suck.
What is the difference if you signup through a referral link or not, you still fill out the same signup form. If they would be a good company, they would review your website within couple of days as they say and not months or never.
they approved my site, but i don't know if i will use their ads because their service is really bad it takes more than 2 weeks before my site get approved and they still not replied to my emails.