title: Transfer AdMob earnings to campaign
body: <p>I have published an App on google play and inegrated AdMob into it.
  I have made a little money from admob, and now I want to use it in a campaign to promote my app.</p>
  
  <p>However, I can't figure out how to transfer money from earnings to ad funds.</p>
  
  <p>I've searched on google and people seam to be able to do it, but I couldn't find out how.</p>
  
  <p>Any help is appreciated.</p>
  
  <p>Thanks!</p>