I've try to contact Bittrex but for some reason they ignored my messages. Please send me our GRK amount and a screenshot of that amount. I believe there is a problem with sending coins out of Bittrex, but they don't answer, so i will swap it myself.
Keep contacting them then , theyre not ignoring you they been away this past week or are busy, needs a dev who wont quit right away but keep going at it
Better off getting on C-cex for now. Bittrex will follow soon enough. C-Cex is super easy to add.