Hi @Heidi123
Welcome to the Roku Community!
Please be aware that we no longer use activation link codes to activate a Roku device instead you will be prompted to enter an email address to begin the activation process. The email address you select will be associated with your Roku account, so be sure to pick an account you regularly have access.
For full information on this, you can take a look at this link: How to activate or link your Roku® streaming device | Roku
Please keep us posted and we'll continue assisting you from there.
Best regards,
Mary
Mary F.
Roku Community Moderator