I have been trying to withdraw my ETH for 5 days now, I've tried over 20 times. The confirmation email never comes. The crap they put on their twitter page about their emails going to your spam folder is nothing but lies. These guys are just low life pos scammers...

I also suggest posting a review about their exchange/service/support and sending them a message through their facebook page 

https://www.facebook.com/coinexchange.io/