Have I purchased a wrong license? Can't activate my windows

Hello,
Thank you for reaching out.
Please note that you have purchased an upgrade license instead of a full version.
Parallels Desktop for Mac upgrade license will require a previous version license to complete the activation and the full version license does not require any previous version license key.
For more information, please go to the link https://kb.parallels.com/115399
We can initiate a refund your purchase for the upgrade license and then you can purchase a full version using the link https://www.parallels.com/products/desktop/buy/

Alternatively, in order to obtain phone/chat support to request the refund, kindly follow the below steps:
1. Sign in to your Parallels account using the link: https://my.myparallels.com/login
Make sure your Parallels Desktop license is registered.
2. Go to the Support page. ( https://my.parallels.com/support/ )
3. Select your product and the category of your question.
Enter a short issue description or key words into the search box.
4. If you don't find the solution you are looking for, click "Request Support" and proceed to the Support contact options.
Kindly refer to this article for more information: https://kb.parallels.com/6571

Thanks