Serial Code Application

So I think I might have just done the stupidest thing I could do this year.

Shame on me for admitting this: I have two NCSoft master accounts and two Guild Wars accounts. The first "NCSMA" has my second Guild Wars account linked to it, the other has other various games on it.

I went and bought Nightfall with the free EotN. (One GW account has Nightfall missing, other needs EotN.) My problem lies with the "Link Game Account" page. I'm not sure what happens beyond this point. All I wanted was two separate codes to put on both my accounts. Are they expecting me to only use one code to activate both products?

Call me inexperienced but I'd like input from someone that isn't NCSoft support. (I've heard of what kind of buggery they can make you go through.) Do I just link my serial code to the NCSMA and get two separate codes? Or do I have to start kicking, screaming and swearing at support?

Where chapters ave been sold as sets; The Trilogy, The Collection, Platinum Edition etc; the product only has one serial code. I would guess with Nightfall + EotN it will give only one code as well.

Add it to your NCSMA, and you may end up with a new GW account with NF and EotN. Be careful to add it as an upgrade to the tied GW account you have.
It's easier, I've found for chapters bought outside of the NCSoft or the in-game stores to be added within the game itself. Although you still need to check you're upgrading, and not creating a new account

If you've only been given one serial code, this can only be added to one game. Add it to the one with NF, and you'll upgrade with the EotN stuffs. Add it to the other, and get the NF stuffs.
If you want to add chapters to multiple accounts, you'll have to buy separate chapters

Well damn. Thanks anyway.

*pools up some more money*