I am the exact same.
I have played every day since last Christmas. Done all the challenges available.
I am miles away from finishing the pass. As I've had 2 weeks that have bugged out and in turn have made the rewards unobtainable.. currently don't have any daily challenges refreshing. And nowy seasonal pass has no rewards on it at all and I can't actually claim it.
So I have missed out on completing something that I should of been able to because of the buggy mess that is the reward system.
I'm gutted. I'm not paying to complete the pass because the game can't reward me what I'm owed.
It's like it was done on purpose to make me buy the remaining items. Quite unfair.