Ladies and Gentlemen, I have found that Nekodar was right all along. Have an instruction manual:
I. Go to your E-Mail account
II. Look for an E-Mail from webhelp.v4 (Tis what it was for me)
III. At the bottom of the E-Mail, it will say "Digital rights" and then give some text. That text is your new code. It is not nearly as flashy as the one for pre-order, so I was confused.
IV. There is some other line of text which I do not understand, nor need to understand, for this has fixed the problem. The beginning part of the unneeded code starts with "BAWETE" for me.

I imagine this is only a problem for digital users.