You will need to contact the IRS regarding your 2020 refund. Please see How do I contact the Internal Revenue Service (IRS)? for more information, including the IRS phone number and hours of operation. You may want to try calling right when they open since they have been very busy throughout the day.
Since you have already paid, please feel free to contact Customer Support so they can assist you. If you inquire about a refund for the product, you will want to use the keywords billing issues when you call so you get to the right person.
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