Did the hidden mission rewards stop working?

I'm level 11 and the hidden mission reward button hasn't appeared for days;;; It says there are 4 days left, but it's been days since I passed level 9, why isn't the reward button showing up?ㅠㅠ It says it takes up to a day for rewards to be issued, but it's been days for me;;;; Also, I noticed that other people seem to get hidden missions even after level 9, but I only see them up to level 9; why is that?ㅠㅠㅠㅠ