I received a RFE asking for a copy of my nonimmigrant visa showing acceptance into the US, but there are two problems with that: First, I had already sent a copy of it with my original package (did they miss it?) and second, my type of visa (BBBCV) does not require me to have an I-94 or to get my passport stamped every time I go into the US. So I sent them a copy with an explanation of why I didn't have proof of entrance and why I didn't have an I-94 (they should already know, right?).
Anyone has had a similar request? The RFEs are really not that clear as to what you're supposed to do, and if you call USCIS they give you absolutely NO help whatsoever... I'm freaking out a little.