title: Firebase user control
body: <p>Is there any way to deny some part of an App to a specific user using Firebase?</p>
  
  <p>The flow is as follow :</p>
  
  <p>User X is authenticated and fill some field in the app and have his/her state on pending.</p>
  
  <p>Firebase admin receive the data input from the end user, validate it and release the account so He/she can have access to the remaining part of the App.</p>
  
  <p>I have been working on this the whole day. Hope someone help.I am kind of new to firebase. </p>