title: Rejected payments from Google Play
body: <p>I have a small android app that is available for purchase on Google Play. I have noticed that recently about 60% of all downloads result in a Credit Card rejected by Google Play. </p>
  
  <p>Why is this such a large percentage? I would expect that a few cards would be rejected because people forget to update them, but 60% is very high. Is there some sort of scam going on to get software for free? Has anyone else noticed this?</p>