Hey @Ted_179
I can only apologise for the delay to responding to your ticket. If you still haven't got a reply, please rest assured that we will get to it and will need to be handled through the ticket as it's not something we can fully discuss in a public channel.
However, I can tell you here that this error usually means you launched and linked the game originally whilst logged in to a different Ubisoft account, so please check the username in top of Ubisoft Connect and see if you remember having another one. Then try logging in with any other email addresses you own.
If you can't remember having another account or the details for it, we will need to handle it through your support ticket and we will need you to provide uncropped images of your purchase in your Steam transaction history as well as the information below:
1) C:\Program...
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