I don't see my ads

Hi guys, I published an App with Admob (with Google Play Services) but when I open it, I don’t see any ads.
I tried my app only with my Italian Devices, could be this the problem? (the are no ads for italian users?)

This is my app: https://play.google.com/store/apps/details?id=org.cisoo.friendzoneconstitution

Just ran the app and your banners are coming up fine! I’m from the U.K

Thank you, now I see the ads too :smiley: