I can't log in to FFXIV right now. It says "no valid or active service account is available to play final fantasy xiv: a realm reborn".

I am a Legacy status member, having done the beta test (including phase 4) on a PS3. My square-enix.com profile has the "legacy" icon next to the FFXIV account, and it says the account is active. I was not informed of any further registration that I'd have to do, of any kind. I thought the same account with the same software would just continue to work right now. And of course, there's nothing for us to purchase.

I have not linked my PSN account to the Square-Enix account, because I can't find out what that does or why anyone needs to do that. Even if I did, I don't know how to do that. I don't know if that's relevant. Is it?

Thanks!