I'm also having the same problem just as you said above, because it really been quite a long time I used FreeBitco casino, and upon coming across your complaint, I decided to give it a try to recover my account, and was faced with the same problem of been shown an "expired link" as shown in the image below.

So I think this is a general issue from the casino server, which really needs an urgent attention, because this fault is preventing many old users from having access to their casino accounts.