Interstitial ads not working

Dear community,

I have already checked all settings several times but no ads are displayed. AdMob shows that requests have been made and the match rate is 97%. However, the impressions are zero.

I have entered the following permissions:

image

Google Play Support is enabled, Game App ID, AdUnit ID, and the Google Play license key are also entered.

I created a widget to display the interstitial ads:

It is created and added to viewport in the level blueprint.

I hope somebody can help me I cant find any solution on the internet.

Thanks for taking time:)

did you solve the problem?