They'll ask you a few questions, thats all, Theyre remarkably polite and not intimidating. When I did my spousal visa I forgot to send in a brief letter from my wife stating that she supported the application. They phoned me and left a very polite message on my answering machine, I phoned them back, they gave me a fax number to fax it into them and I had my visa the next day via Federal Express. I think if you were gonna have a problem they would have sent you something in writing indicating it.