You can go to the Pinball FX3 main page and scroll down to this mention of the care package:
Click on it to claim the 3 DLCs to your accout.
Main game page here:
@delenn13 and plenty of other people who like pinball.
Try to go into any of the DLC pages and click on the green button associated with the package.
Apparently this is not working for some people, so you may have to remove the base game from your account to claim…