App not monitored, apparently.
There have been many comments/complaints that the free daily puzzle doesn’t work. But the admins of the app seem to take no heed. I don’t recall ever seeing an update to this app in the App Store. The only thing that seems to change is occasional offers to unlock levels at a discount. I just now tried to go to app support, and it went nowhere. It looks like the administrators of this game are taking a “set it and forget it” approach.