title: Update account with verification document
body: <p>I created an account using createToken (client side JS)</p>
  
  <p>I want to update the verification document for that account.</p>
  
  <p>I have successfully uploaded a file and obtained a fileId</p>
  
  <p>I am trying to attach it to the account. I am using .net server side</p>
  
  <p>I have done this:</p>
  
  <pre><code>  var options = new AccountUpdateOptions
          {
               Individual = new PersonUpdateOptions()
               {
                   Verification = new PersonVerificationOptions()
                   {
                       Document = new PersonVerificationDocumentOptions() { FrontFileId = fileId}
                   }
               }
          };
  
          var service = new AccountService();
          Account account = service.Update(accountId, options);
  </code></pre>
  
  <p>However, this does not work, I get the error:</p>
  
  <blockquote>
    <p>This account can only be updated with an account token, because it was
    originally created with an account token. (Attempted to update param
    'individual' directly.)</p>
  </blockquote>
  
  <p>Am I supposed to save the token created in my db for each account in order to update?</p>
  
  <p>Also how then should i update the account?</p>