Do they test their procedures with people?

Do they think that the problem is explained here: http://forum.square-enix.com/ffxiv/threads/68792 ?

- If your account has only one FINAL FANTASY XIV service account, please select that option to continue. ?????????

I'm another one that AFTER READING THE "WARNING" has created a new sub-account inside my account.

Ticket already sent.

Please bring images to explain how it should be done and/or blocked multiple sub-accounts till weekend.