Please i really need help. My green card application is based on a marriage to US citizen. My priority date is April 20, 2012. I have received two RFE's. first one i responded to after a month that i sent in my Application. Second RFE came after 20 days that i submitted my first RFE which was missing form in i 864. The second RFE was to submit my Joint Sponsor 2011 tax return, and his Birth Certificate to prove citizenship. Which i already sent to them and my cases status online shows they receive my second RFE which say " REQUEST FOR EVIDENCE RESPONSE REVIEW and said we receive your response on June 25, 2012. After 10 days of my reply to Second RFE my Employment Authorization Document got approved which i already received last week. How long to get Interview Letter? Please help!!