Hello,
Thank you for posting in Q&A forum.
We are sorry to hear about the trouble you faced with your purchase. You can refer to the following link to request a refund for your Windows 11 product key. Please refer to the link: Returning items you bought from Microsoft for exchange or refund - Microsoft Support
When you request a refund, it may take 72 hours to process the request. We'll contact you with updates, or you can check the Refund status tab.
I hope the information above is helpful.
Best Regards,
Yanhong Liu
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