My application was returned the first time because it was "missing" my marriage certificate. Turns out they just wanted a different type of certificate. I couldn't understand what the issue was, but we called immigration to have them clarify. I would suggest that, and explain what you included, and try to get some input from them before you resubmit. I would hate for you to just return everything just to have them send it back because there actually IS some kind of issue. Also, if any forms have been updated since you first submitted, make sure you send updated forms with your new paperwork!
