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We understand that you are inquiring about a charge.
We recommend that you try logging in from another device or browser so you're able to request Support. Our Account-billing team can be reached via email. Please contact them directly here https://support.roku.com/contactus. Choose the option from the drop-down menu for "Account, payments & subscriptions" and you'll be able to send an email request there.
In addition, have you verified that you currently do not have any active subscriptions by logging into your Roku account online at my.roku.com and clicking Manage your subscriptions?
You may also use these links from our Roku Support to learn more about how to review charges: What to do if there is a charge you do not recognize | Official Roku Support
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