Apple has repeatedly rejected or iOS app (we have the app on Android as well) for an assumed violation of the IAP guideline. There is nothing to purchase. The app was accepted for almost 3 years without this objection. On the registration screen it said "unlock code" for one field and email for the other. We changed unlock code to User identity and they continued to reject it.
I am the point where I may not be employed any longer over the repeated rejections. Each time I have noted the app is free. There is no paid content. This is impacted me, not paid yet, my client, current version is broken on iOS because of a mandatory server API change, and our apps users, who now have a non functioning app.
Anyone else run into this, by now seemingly malicious, app review black hole? Did you resolve it?