Admob has a 0% fill rate and ads are not showing up

Admob shows banner and interstitial ads on emulator correctly, but there`s no ads in app, published in AppStore. I tried two ways of ads implementation for swiftUi and both of them work on emulator. All ads identifiers are set correctly, checked few times. I see ad requests in AdMob, but fill rate is 0%. Also tried to create new app in AdMob with new banner/interstitial ads, but the problem is still the same: fine on simulator, 0% fill rate on real devices
Also I can’t link my app to admob, because it simply still can’t find it, may this be a problem? Thank you.
I am having the exact same issue. Have you found a solution?
Admob has a 0% fill rate and ads are not showing up
 
 
Q