There appears to be an issue with Bittrex account verification. Some Bittrex users have reported that they are seeing passport images and selfies of other people in place of their own.
This could possibly be a manual mess up, but Bittrex hasn't released an official statement on this issue yet.
Another crypto exchange mess up comes from poloniex. STEEM and SBD deposits aren't reflecting on the website. Don't use @poloniex for now, wait for the issue to get resolved.