title: how to get the verified phone Number in E164 format using SINCH
body: <p>Hi I implement the sms verification following SINCH tuto: </p>
  
  <pre><code> verification.verify(enterPin.text!,
                              completion: { (success:Bool, error:NSError?) -&gt; Void in
                                  self.spinner.stopAnimating();
                                  self.verifyButton.enabled = true;
                                  self.enterPin.enabled = true;
                                  if (success) {
                                      //here I want to get the phone number in theE164 Format
                                      self.status.text = "Verified";                        
  
                                  } else {
                                      self.status.text = error?.description;
                                  }
          });
  </code></pre>
  
  <p>I want to retrieve the phone number in the E164 FORMAT  if the verification succeeded.. thanks for your help!</p>