title: In-app purchase API Server Error 509
body: <p>I get 509's from the server quite a bit.</p>
  
  <pre><code>**Server error on InAppRestoreTransactionsRequest: com.android.vending.api.ApiException: HTTP 509 for https://android.clients.google.com/vending/billing/ApiRequest
  **
  </code></pre>
  
  <p>Is there a limit to how much you can hit this server in development? My APK is unpublished and the gmail account doing the request is the listed debug account and not the dev/publisher account.</p>
  
  <p>I've waited about two hours and I'm still getting it.</p>