Please keep in mind that this is a public user forum and not the Steinberg Support. So please remove all your personal information from your posting. Otherwise they will be publicly visible in the internet.
You can register a code just one time, after that the code is not valid anymore. As you have done this before this code is now obsolete.
To get a license update for for AI license please add a request to the thread I have linked here, as many other users have done already as well. But do not add any personal information again, they are known by Steinberg via your email address.