We are indeed aware and working with Sony to fix the issue asap.
It seems to affect PS4 players in the US “only”. Unfortunately we can’t fix this directly from our side but we are on the case. Definitely not intended to cause any frustration with this purchase and we apologize for the inconvenience.
This thread was added on April 16, 2019, with posts from Tascha.
Also, since I forgot: Welcome to the community to all the new names and welcome back to the ones who haven’t posted in a while 
We have not heard back from Sony. It’s definitely affecting US and Canada Passes.
If you try and see that it works for you. Please let us know, as we cannot check or do anything from our side.
Thanks for letting us know!
Can other US or Canadian player also confirm that it’s available now with the Season 2 pass for you?
So now that it’s available you want to refund the money? Ok then.
Which season pass did you buy? The Turan DLC is in the Season 2 Pass.