I think it is time to say goodbye to your btc's. I think website will go offline soon, or they ran out of btc because hacker stole it and now they need to get btc's to give the users.
"The hacker" yeah... Any exchange with this kind of volume knows what a cold storage wallet is and how to do daily updates. There is no excuse for getting "hacked" and I personally don't buy it for a second.