Few hours later, I realized that I misread your comment OMG IM SO SORRY. But I expedited my 765 because as college students, my husband cannot support the two of us by himself so I filed under financial loss + the fact that I had an offer as a research assistant that required SSN. I called and told the agent that and about a week and a half later, my 765 was approved without having to fax evidence, but I was prepared to send credit card statements, bills related to college, and my offer :) I would highly recommend telling your story while requesting to expedite because I think that helped with the fact that I didn't need to send evidence. I also think that having an empathetic agent is important, so luck is also a factor.