hi
i forgot my email address and my password in freebitco.in
but i know my wallet address
what can i do?
^ Probably 10% chances you will recover your account, you can simply grab a bitcoin address from the site and claiming that this is your account.
It is good if you remember you email address even though your password is not. At that point, they can easily trust you that you are the real owner of that account. But try to reach out to their support team, probably they will listen to your claim but I don't know how long the process before will solve. Nevertheless, you can make another account if there's no balance of that account you have said.
Don't be so sceptical. If he can sign a message from Bitcoin address that he used on Freebitco.in, then most likely that he is original owner of account. If he can't, well, nothing else can be done to recover his account.