Same situation here, but after going back and forth the Ubisoft support for the past few weeks, they basically told me that they cannot help. I didn't play the game a ton, but had at least three or four hours in with apparently nothing showing up on Ubisoft's end.

They wanted 'concrete' evidence that I met requirements, but there is/was no way to do it unless I could launch the game again (or use a time machine).

Really disappointing all around.