Admob script help

I have an admob script and it shows (dummy.loadad) but it doesnt show actual ads in game so i know i did something wrong. In admob website the ad i want to show is called interstitialA60 (not 60interstitialA, changed it). What do i need to do to fix this?

Regular ad is the interstitial

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using GoogleMobileAds.Api;
 
 public class Ads60 : MonoBehaviour
 {
     private BannerView bannerView;
 
     [SerializeField] private string appID = "";
 
     [SerializeField] private string bannerID = "";
     [SerializeField] private string regularAD60 = "";
 
 
     private void Awake()
     {
         MobileAds.Initialize(appID);
     }
 
     public void OnClickShowBanner()
     {
         this.RequestBanner();
     }
 
     public void OnClickShowAd60()
     {
         this.RequestRegularAd();
     }
 
     private void RequestRegularAd()
     {
         InterstitialAd AD = new InterstitialAd(regularAD60);
 
         AdRequest request = new AdRequest.Builder().Build();
 
         AD.LoadAd(request);
     }
 
     private void RequestBanner()
     {
         bannerView = new BannerView(bannerID, AdSize.Banner, AdPosition.Bottom);
 
         AdRequest request = new AdRequest.Builder().Build();
 
         bannerView.LoadAd(request);
     }
 }