Was asked registration after maintenance and early access code wont work..

[Chrysus]

It is an early access code though, so that is something. Still have not received an actual code.

To be honest, though, why would they even need to require two codes? Shouldn't anyone who was in the early access have access to the game?

No, we all had to input our proper official registration code upon official launch. All early Access players and legacy players had to do this. Since your code has not arrived, I think its best if you submit a ticket detailing your complaint. Some have suggested solutions. I recall something about "find my order" wbsite..? not sure