Dang this is hard. Here is what I did to reject/delete/replace my ios build before it was released. The app was approved how ever I found found a bug I wanted to fix before releasing
- I set release to "manual" and saved
- I tried to create and app release
- got an error message something like "you can only have one release at a time"
- where the save button was there was not an option to cancel release
- the version of the app is not marked "developer rejected" with a red dot
To replace the bad build I did the following
- if you click on the "+ version or platform" to create a new version you will not be be able to create a new iOS version
- you need to upload a new build
- in your rejected app, select the new build
- save
- submit for review