Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
If you've checked your Roku account online and are unable to see a Disney+ subscription, it would seem that you subscribed to the channel provider directly and you will need to contact the Disney+ support regarding your account.
It's confirmed that Roku is billing me for the app. However, on my online account, there are no subscriptions, no billing history, nothing. On my TV, on the other hand, shows my card linked - which is being billed every month. I go to the website listed at the bottom of my TV screen, to "see other payment options", and it directs me right to the page where I add my payment method --- which is not linked on my online account, but is already shown linked on my TV. None of this makes any sense!