I was hacked but I can't retrieve my account because the hacker changed the email address associated with my account. 
Unfortunately for you, I also lost the email, but I have not lost my account, but now they still do not deal with bad, sadlyI tried to help but if you can't prove ownership with a Bitcoin signed message there is nothing I can do. We constantly nag you with a reminder to use 2FA. If you don't do that then your email account is the key to your freebitco.in account and if someone hacks your email they get that too.