title: RegisterUser() Dwolla API method and user phone number
body: <p>I can't figure out why I can use <code>RegisterUser()</code> on my site only to have to re-enter some of the information when I go to Dwolla.com. I think it has to do with not entering a valid phone number when using <code>RegisterUser()</code> but I didn't get any errors when entering a valid vs. invalid phone number on my site.</p>
  
  <p>This gets at a larger question: What Dwolla API methods validate vs. fail validation when a Dwolla user doesn't have a phone number? Currently the phone number requirement seems inconsistent.</p>