Yesterday I registered on Justcoin.com and deposited few bitcoins. In about a hour, I've tried to logon, but my password didn't matched.
Well, I've passed to  [Reset your password]  https://justcoin.com/client/#auth/resetpassword link, and filled in my email. I received a message with the reset link. Then, there was no a common window "type in new password", instead there was a message saying smth like "close it & return" to the previous window...
I had several tabs opened, so, maybe I closed a right one, and returned to the wrong.
So, my password was not changed & I'got no message to email...

Well, I just retried to use [Reset your password] link but now it answered
"Sorry, but you tried to reset your password not long ago. Try again later or contact support@justcoin.com."

I wrote to support@justcoin.com, but still (15 hours passed) got no reply.