I am in the US and have a. subscription with Roku, and up until the end of august I also had a subscription with Brit box that was signed up through Roku until I could no longer afford it.
My daughter in England has subscribed to Britbox, and because it says that you can be signed on 5 devices, she has given me her details, however, when I input her details it tells me it’s invalid. Is this a Roku issue?
For more information about that channel's account authentication functionality, It's best to reach out directly to get the channel going on your Roku. They can resolve the error you are having with the channel login. Please be noted that Roku doesn't manage channel logins or authentication and many channels on Roku are developed and maintained by the channel provider themselves.