When you subscribe to a service through Roku, that's not the same as subscribing directly to the service. You can only use the subscription on a Roku device that's tied to your Roku account. When you subscribe through Roku, the service (Peacock TV, in this instance) won't be able to help. It's as if you don't really have a Peacock TV account, but are using Roku's Peacock TV account that you're paying for.
You'll need to contact @RokuDanny-R or @RokuKariza-D for assistance on your Roku subscription.
Alternately, you could cancel and subscribe directly to Peacock TV Premium, then use your credentials to log in to the Peacock TV app. With an actual full Peacock TV account, you can use it on any device, including phone, tablet, computer, or other streaming device, or a Roku device tied to someone else's account. You would also go to Peacock TV with account issues, not Roku.
Roku Community Streaming Expert
Note: I am not a Roku employee.
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