Most I've seen who complain about getting scammed from media.net have been those who either reside in Vietnam or a majority of there website traffic comes from Vietnam.
Media.net considers Vietnam traffic to be low quality for some reason.
Many people with high quality websites and high quality traffic are using media.net and raking in some serious cash flow from them.
Majority of your traffic if your using media.net or are planning to use media.net should come From USA, UK and Canada.
Here's some info I copied and pasted from there website.
Program Guideline
Our program is currently only open to website(s) with premium content that fulfill the criteria specified below:
- Contain significant amount of original content that is updated regularly and does not infringe any third party intellectual property rights
- Receive majority of their traffic from US / UK / Canada
- Contain content that is primarily in the English language
- Have a reasonable volume of visitors already using the website
- Do not contain excessive advertising
http://www.media.net/en/legal/programguidelines
If your website is pretty new. I'd wait until you have substantial traffic with the majority of it coming from USA before even thinking about using them.
I'm sure they'll pay you as long as your site is of high quality and gets high quality traffic.
With low traffic you won't earn much anyway. That's true with Adsense and Media.net or any other ad network.
You need lots of traffic to really earn anything with ads on your website.
When I say lots of Traffic I mean you need upwards of at least 6,000 daily unique's before you really start earning anything with any ad network.