You can't trust bittrex and you shouldn't trust any exchange sites because it's simple nothing is impossible. If they don't answer tickets, contact bittrex supporter on slack and they will help you within minute.
agree with you even some members still consider bittrex the dream exchange
so many members still having disabled accounts , same for me I have been waiting their support reply for 16 days now
so either they are ignoring some users on purpose , or they have lack of support team and both of the options suck for a site like bittrex to be honest
this drama with bittrex and poloniex making me learn more and more about EtherDelta