If your on the Bittrex exchange and haven't verified your account with supporting ID ( passport, driving license or identity card).
There is a fair chance your account could be suspended, i have been made aware that this from pressure from the US and UK government on the terror legislation and money laundering ( although we all know its more to to with the Orwelian society the governments are aiming for).
If you haven't enhanced your account, i suggest you do immediately.