Thaks for your reply:
In app info on admob account: It does says 0 app request, 0 impressions, however I have the "Test mode" on in the Admob object properties on C3. So aparently teh ads were never requested.
The reason to show a banner at the end of the game is because I don't want to show the ads during the game play, for a clean game experience. It's a short round arcade game so you will loose often. and I intend to show the ads in the score screen. I want to monetize, yes, but I want a clean experience and non intrusive ads.
I'm loading the ad on start of layout but I am showing the ad when the players loses the round.
I'm thinking that maybe the pluging doesn't work well with the debug apk from c3.. maybe I have to recompile it using android studio?
oh - OK, so no, you would not see ad requests on "test". Im not 100% confident in C3s "test" scenario for Admob. When using android Studio, I have used this official Admob test ID:
ca-app-pub-3940256099942544/6300978111 - for banners
For more information, see https://developers.google.com/admob/android/test-ads
You could try using that ID in the ap ID and see what you get.
Also, be wary about showing ads on exit, though it sounds like you mean "end of round". It "may" be against Admob policy if on exit:
Publishers are not permitted to place ads on any non-content-based pages such as thank you, error, log in, or exit screens. These are the screens that visitors may see upon launching the app, before potentially leaving the app or after performing a specific action on the screen such as a purchase or download. Ads that are the main focus on these types of screens can confuse a visitor into thinking that the ads are actual content, so do not place ads on such screens. - Admob is very particular.
HTH - good luck.