let me walk you thru it my muslim sister, first of all dont panic when u get ur RFE letter, obviously u did already so from my experience to RFE i thought my life was over and i will never come up with the evidences that they asked for, mind u that i got 2 RFE's, the first one was con't presence from 2009 to 2012, and the second one presence in the usa in june 15, 2012. so i was faced with 1000 dilemmas, which turned out to be all right at the end, so i started collecting paper works, in my case i did not submit any proof of continiouns presence in the original evidence, so i went crazy once i got my RFE, i have collected over 60 paper work as proof and evidence for my con't, so this time the case worker is gonna go crazy because at first i thought like i dont want to stress out the caseworker but this time game on, so just send them any possible document that u could find from emails wired internet payment which i have plenty of those from my gym membership to my clear internet wired payments month my month statments, western unions receipts dated back in 2010, my ITIN, and even my facebook checkins and friend tags with a picture and date.