The problem, as any government office really, is communication. Even if you call and tell them to expedite your application, there is zero chance they are going to do anything because the only thing that they are going to see in their screens is a memo that only states that application from March to May are still being worked on. And to be honest, what do you expect when the whole USCIS back-end it's being overhauled by the lowest bidder. Trust me, my frustration gets bigger everyday by the stories I hear from this site with people losing their jobs because of a system's failure. I wish there was more accountability and flexibility from USCIS.