Do you have your most recent address on file with USCIS? You could also take an InfoPass appointment and request that RFE be resent. I assume that you found out from online case status that an RFE was sent to you but you never actually received it.
Thank you jefkorn
I did call USCIC 800 # and the officer tells me they did send me request of evidence in the 26th of February. And I did wit 2weeks nothing in the mail and I call the office and I did ask them to resented back to me and now almost 3 weeks and nothing in the mail so what you recommend for me to do at this point ……