title: Why won't admob interstitial ads display?
body: <p>So I've added banner and interstitial ads both from admob in my unity android project.So I've tested it on my test device and my banner ad is showing fine but my interstitial ad won't display.</p>
  
  <p>I've made it on every 11 games to show the interstitial ad:</p>
  
  <pre><code>public void OnCollisionEnter2D(Collision2D other)
      {
  
          if (other.gameObject.tag == "Pipe")
          {
              s.GameOver();
              targetVelocity.y = 0;
              targetVelocity.x = 0;
              cube.gameObject.SetActive(false);
              score.gameObject.SetActive(false);
              this.anime2.enabled = true;
  
          }
  
  
          PlayerPrefs.SetInt("Ad Counter", PlayerPrefs.GetInt("Ad Counter") + 1);
  
          if (PlayerPrefs.GetInt("Ad Counter") &gt; 10)
          {
              if (interstitial.IsLoaded())
              {
                  interstitial.Show();
              }
  
              PlayerPrefs.SetInt("Ad Counter", 0);
          }
      }
  </code></pre>
  
  <p>And this is my request code:</p>
  
  <pre><code>private void RequestInterstitial()
  
      {
  #if UNITY_ANDROID
  
          string adUnitId ="ca-app -pub-3960055046097211/6145173288";
  
  #elif UNITY_IPHONE
  
          string adUnitId = "INSERT_IOS_INTERSTITIAL_AD_UNIT_ID_HERE";
  
  #else
  
          string adUnitId = "unexpected_platform";
  
  #endif
  
          // Initialize an InterstitialAd.
  
          InterstitialAd interstitial = new InterstitialAd(adUnitId);
  
          // Create an empty ad request.
  
          AdRequest request = new AdRequest.Builder().Build();
  
          // Load the interstitial with the request.
  
          interstitial.LoadAd(request);
      }
  </code></pre>
  
  <p>Of course afterwards i called the method in the start().</p>
  
  <p>So where is the problem?Should i put this script on an empty object?</p>