We appreciate you reaching out to us.
For these issues, it may be more effective for you to get help from our billing team. Please contact them directly at https://support.roku.com/contactus. Choose the option from the drop-down menu for "Questions about my account or billing," and you'll be able to send an email request there.
Sir the only way to recover charges and stop charges from Roku is too first contest those charges with your credit card company they usually credit your card with those funds and charge it back to Roku. Then have them issued you a new card, it will have a new number and Roku will not be able to charge to your new card. This was the only way after I was able to get my money back and stop the charges. I tried using Roku team and after 6 months of being told they could not trace or find where the charges were coming from I had them issue me a new card and contested the charges. It took about a month after I did this for the credit card company to refund the money.