Hello guys I have a problem as stated in the question. In Italy the iAd network is available but iAds are not showing when I download my app from the App Store. In the test
iAd may not be displayed on your device if there is no Ad available to display targeting your device and your type of application. Even if iAd is available, there may be no advertisers that chose to launch ads that corresponds to your app
Actually Ads appeared after one day. I don't know, but this was the first time I used them on an app, so I received in iTunes Connect a message that iAds were activated after one day. Maybe this helps anyone else who has this issue.