To Report App Notifications issues with the Bimmerpost App I recommend using the thread linked below:
https://www.m3post.com/forums/showthread.php?t=449015
I posted on the thread with the following: I just wanted to make you aware of recent issue with the App. I am using the Bimmerpost App for iOS version 4.6.7.0 with an iPhone 8 running iOS 13.3. PUSH Notifications for Post Replies, PMs, Appreciates etc. are no longer working. In the App, Push Notifications are "Active" and I have performed the "Clear all Devices" recommendation without success. Additionally, Notifications for the App are allowed on my iPhone. Other Users are experiencing the same thing as chronicled in some posts of this thread linked below.
https://www.m3post.com/forums/showthread.php?t=1777716