Hello...
I want to ask, why can't my application display ads from my ad units. Even just to test the ad unit, it doesn't appear at all. I have tried various methods such as adding a test device ID to the source code but it failed, I have even tried adding a test device to the AdMob panel but it still fails.
If I use my ad units it will always show "ads failed to load: 3" and then if I try again it will show "ads failed to load: 1". I don't know what's wrong, but if I try to use the test ad unit from Google all the ads appear.
Even though my Admob account, my application, app-ads.txt have all been approved. I have even uploaded my application to Playstore. I have also submitted my tax information.
I hope you can help me solve this problem.
Thank You.