by the way, if you don't satisfy with bittrex, you can move to other exchanges. there are many exchanges out there that maybe suit for you and you don't have to complain with the site. i think its normal for them to maintain their wallet because its for their member security too. do you know that xvc takes too long to be maintain too? its not just for neo wallet but for every wallet in the exchanges so be patience for a while.
True, agree with your statement. If feel dissatisfied or disappointed with bittrex action against wallet, we can move using other exchanger. And the matter over.