The Embassy refused to reschedule the interview for my fianceé. On October 21, 2011 she received the packet asking for various documents from a variety of government agencies and medical exams. However, the interview and deadline for submission were November 2, 2011. On October 24, 2011 I emailed a formal letter in PDF format asking to reschedule due insufficient notice and my own scheduling conflict. Within 2 hours, the embassy sent me an email refusing to reschedule.
I had to contact my US Senator for something as reasonable and simple as rescheduling.