We appreciate you reaching us here in the Roku Community, @Assine!
Firstly, we sincerely apologize for any inconvenience this may have caused you. No worries! We'd be more than happy to further assist you in canceling your Peacock subscription.
We suggest logging into your Roku account and go to Subscriptions. Under Active subscriptions, select the subscription you want to cancel and select Turn off auto-renew. After doing so, you may continue to use your subscription until the end of your current billing cycle.
For further information about this kindly visit our Support article on How to turn off auto-renew and cancel a subscription.
If you need further clarification and assistance, please don't hesitate to let us know as we'd be more than happy to continue doing so.
Best regards,
Carly
Carly Y.
Roku Community Moderator