I've read a similar case before where no transaction hash was shown until after the transfer was completed. Maybe you transacted with a huge amount of money because even if verification isn't needed for cryptocoins transactions, exchanges are still subjected to KYC and AML policies.
Well I know it sucks but still you have to comply with them and just wait for 48 hours.
However, some other people have said that there is fishy stuff going on with hitbtc.
Make sure in future, don't store too much on these exchanges.
Exchanges are always fishy imo, even if they aren't now, theres a high possibility that they will be someday.
Yah. Use it as an exchange not as a wallet so don't store much.