SCAM - unethical business - not customer friendly - AVOID THEM!
They put BTG wallet in maintenance 11 days ago, making tons of deposits inaccessible. They are lying that they need feedback from developers. (Meantime, other exchanges fixed BTG issues in days.)
And Bittrex's support is unable to help, actually they have no willingness to solve the issue.
(And they are forcibly closing the support tickets without any meaningful work. )