I logon today to play ANNO 1800 and it says Activate sunken treasures DLC when I click on it I said please enter your CD Key or Activation code here, but I own the season pass and I don't have any email with cd key or activate code from Ubisoft??. to enter it in.
Hello AORUS2017,
This may be because as gciniciato stated, the DLC has not released yet. It should become available on July 30th.
However, if you would like to reach out for clarification, please feel free to contact our Support Team.