Hi, @MsGalaxy
Welcome!
I understand your concern with app access and subscription, and I'm here to refer you to the right support.
For this concern, it is recommended to reach out to Prime Video's support and inquire further about your subscription access since it is managed by their streaming services. They can guide you on how to access your subscription.
To contact them, refer to Prime Video | Help
Hope this helps.
Thanks,
Roku Community Team.
Takashi O.
Roku Community Moderator