Support starts at https://support.roku.com/contactus - that's all anyone from Roku is going to tell you here.
Did you log into your account at https://my.roku.com to see what subscriptions you have through Roku? Keep in mind that if you have (or have ever had) multiple Roku devices you may have multiple Roku accounts. You'll have to check each one. You can find what account a Roku device is linked to by checking under Settings->System->About.
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