Ah, I also had previously successfully generated codes. I’ve made Apple aware.
Danief
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Thanks for the thought, however:
“After your app is approved, you can request promo codes to distribute to users before you make your app available on the App Store.”
Source
Ah, I’m also sending promo codes to Facebook for their app review. I wonder if there’s a link.