I just had $500 in coins stolen by them.

2 days ago they decided they didn't like my email address when I tried to transfer an alt coin to a private wallet.   They asked for another one and when I asked what was wrong with the one I signed up with and offered another to try, they deleted my account and that was the last I heard.  No followups to any of my emails.

Now I have no access to my coins.

Stay away from this scam.