iOS-9.0,2 downloaded automatically
On both my iPhone and and my wife's iPad, the iOS 9.0.2 update downloaded automatically even though this is set to "off" in Settings -> App and iTunes Stores -> automatic downloads -> Updates.
This could easily have been expensive if it had exceeded our cellular data package limits.
In addition, when I tried to report it to Apple support from the iPad, Apple asked for a fee of +/- $20 to report the issue even though the iPad (purchased new from the Apple online store) is less than one year old.
Is there any way to report bugs for iOS and how did this happen in the first place?
iPhone 5s, iOS 9.0.1