I can't use the key to login

I spent money to buy a license update after using the free version but couldn't use it

 

Hello, please be informed in order to activate Parallels Desktop for Mac Upgrade license you must have a Parallels Desktop legacy permanent license to act like the previous version key while activation. If you don't have any Parallels Desktop legacy permanent license, we will be able to initiate the refund for Parallels Desktop for Mac Upgrade license, so that you can purchase Parallels Desktop full license. Thanks.