Are you sure? Do you know anyone with enhanced verification that are getting accounts locked? It could be because they have two accounts, maybe an old one without verification and new one with verification.
That doesn't really make sense. If people operate 2 accounts, from which 1 is fully verified, and the other not, the non verified account would get 'locked' in worst case, and the other not. It's very weird what's going on lately with Bittrex -- that non verified new accounts can get locked is quite understandable, but that even accounts with the highest verification get locked is very weird, softly said. At first it seemed only to affect a few users, but this is spreading like a plague. What people were complaining about with Poloniex, is now happening with Bittrex.
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)