Hi @Amber-15,
Thanks for reaching us.
For account, billing, or order-related issues, please reach out to our support team directly here for your 'Account or billing' issue, here: https://support.roku.com/contactus. They will be able to further assist you.
We would highly recommend creating a Roku PIN for your account to avoid any further unwanted purchases on your Roku account in the future. For more information about using a Roku PIN, visit our Support page here: How do I create or update the PIN for my Roku account?
Thanks,
Mary