I'm getting these phishing attempts too.
The thing is, i registered with an unique email address specifically created for that account.
So either their user database got stolen (and they didn't mention THAT in their email) or they sold the addresses/abused the addresses themselfs (in which case they wouldn't mention is anyway).
Wow. Also, their mining address 1ALA5v7h49QT7WYLcRsxcXqXUqEqaWmkvw has only generated 3 blocks in the last 5 days, when there should be closer to 12 blocks according to my calculations. Are they skimming?
I've given up hope on recovering my CH investment, and I'm turning toward other investment opportunities to make up for it. I also don't believe they have the hash power to support the $0.59 contracts they're selling now. I challenge CH to prove me wrong.