Just to let you know - at the moment Bittrex disabled deposits and withdraws due to wallet update maintenance.
Kind regards.
UPDATE: Just so that everyone knows- All technical problems with Bittrex have now been resolved and BSY markets have now re-opened. Also we are not going to be removed. So get trading guys
https://bittrex.com/Market/?MarketName=BTC-BSY Confirmed - I just did test deposits from Poolfinity.com pool, and they came thru without issue.