title: Very few ads showing through AdMob
body: <p>I have a trending game, currently 2nd most downloaded in my AppStore, it uses banner ads by AdMob at the bottom of the screen, but the thing is very VERY few ads are showing (probably shown to 4-5% of the users who play the game)... I mean so few ads are showing that even the app was initially rejected by Apple because no third party ads where shown as stated in the App submission... Is this normal? How do I fix it? I see that it earns some cents so you can tell ads do show up although obviously not enough no earn even a dollar a day. </p>
  
  <p>Any help please?</p>
  
  <p>Edit: statistics just came out: </p>
  
  <p>Estimated earnings
      €0.45
  Impressions
      51,556
  Request RPM
      €0.01</p>
  
  <p>How should I read this data?</p>