Endwalker Code

So, since the official store didn't let me buy the game because of a weird error where it says my purchase was cancelled and then excluding the game from my cart, i ended up buying from the Humble Store, i was able to activate the game and play in early access but only a few hours because of the huge queue. Now to my surprise i can't play Endwalker and just learned reading other posts that there is actually 2 activation codes but if that is the case and i only got 1 that i already used, do i need to buy another one? Is there a way for the S-E Support to actually revert it even if removing the pre-order items if neccessary? I mean, i bought a Collector's Edition code and was able to use it for early access, so why would you make the full game and the early access code interchangeable to begin with?

You should get an Email from Humble or see the secodn key in your order history.
Except you bought only early access, but I don't think Humble would let you.

Thanks for answering, well i didn't receive an email nor had any sort of notice when logging into my Humble account but i just checked and it was added to my list in the same screen where i got my early access code.