Hi, @colubgo1.
Welcome to the Roku Community!
We see that you got charged even though you already have a subscription. In this case, we suggest reaching out to the channel provider and inquiring further, as they are the ones who could cancel and provide further details regarding their channel functionality on the Roku platform. You can reach them through their direct Hulu Support
Please be aware that if you signed up for a subscription directly through the streaming service, you need to sign in with the username and password that you created for that account.
Furthermore, you may visit this support article on how to sign in to an app on your Roku device
Hope this helps!
Thanks,
Reynan
Reynan L.
Roku Community Moderator