PoL Registering ExpansionsFollow

I didn't know where else to post this and seeing as Bismarck is the server I'm from I thought meh why not >_>..

I've just un-installed FFXI and Rise of Zliart, I've now re-installed both with an additional expansion pack Chains of Promathia. Everything's gone fine, I finally get on the game, it tells me that I need to register Zilart and CoP so I go back to register them and bam.. Tells me my password/user name is invalid or incomplete.. I'm sitting here like "What the hell, did you not just accept this two mins ago to friggin' let me in?!".. So yeah. :| What could be wrong?

I get the error:

UCS-5000

I've tried online PoL chat support with the agents but as it's a saturday no one's working I don't think haha, I'll try the e-mail if no one can help me here. :(

- Thank you in advance.

No, I don't even get the chance to put in my validation codes..

It's my USERNAME and PASSWORD that it's requesting that it says is invalid/incomplete, but I've just previously used them and it let me into PoL.. |: