I've done everything they've requested of me and they still will not release my funds. I've submitted my ID card, a selfie, and my Social Security number. Now, this is their latest request from me; a selfie, holding up my ID card with note that says "Bittrex" with the date. They sent the example below and it creeped me out because I feel like I am negotiating with the FEDS now!
Did they write any answer to you? You are luckier than all of us!