These fields in the "Billing Address" section are not provided by Moodle. Instead, your site have them defined as custom profile fields. That's why the language strings are not used to display them. Please see https://docs.moodle.org/en/User_profile_fields for details and the section there "Translation of custom profile fields".
Languages
string identify is not shown everywhere
Denne diskusjonen har blitt stengt, og du kan derfor ikke svare i den lengre.