title: Adding sendgrid:starter failed ! Error Provisioning User - Error creating customer
body: <p>I just finished installing the Devise gem without any problems and now I am trying to install the Sendgrid add-on from the command line using:</p>
  
  <pre><code>heroku addons:add sendgrid:starter 
  </code></pre>
  
  <p>I have done this before with other apps without any problems.  However with this time I am getting this error:</p>
  
  <pre><code>Adding sendgrid:starter on languagecheck... failed
   !    Error Provisioning User - Error creating customer
  </code></pre>
  
  <p>I have gone through my code several times.  I tried logging out and back into Heroku without any problems.  I tried searching for someone with a similar error, with no luck.  </p>
  
  <p>I cannot find any other error messages elsewhere.  Does anyone have an idea for why this is happening?  Could it have something to do with Sendgrid's server being down? Thanks in advance for your help! </p>