Cannot buy a game with Ubisoft+

Hello all,

I just got 1 month of Ubisoft + and I was trying to buy Valhalla Cmplete edition as it is on sale but I get an error message that I already own the game...

Now, I wanted to buy the game so that I can cancel my membership but it seems that it does not let me do that... Am I doing something wrong? (obviously a timing issue too, my membership finishes on Jan 17th, Sale on Valhalla finishes on the 2nd....)

Many thanks,

:)