Google Admob Ads not showing. Test ADS works well, but not my real AD ID

Everything work well if i use the test reward ad unit, but when i change to my own reward ad unit it is not showing up anymore. Why? Help? App got released already and i linked app in admob account. What else there is?

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 using System;
 using GoogleMobileAds.Api;
 using NiobiumStudios;
 
 
 public class AdMobScript : MonoBehaviour
 {
     public Text adStatus;
     TimedRewardsInterface timedRewardsInterface;
     private int rewardAmount;
 
     private GameObject reward250;
     private GameObject reward750;
 
     bool isAdClosed = false;
     bool isRewarded = false;
 
     //string Rewarded_AD_ID = "ca-app-pub-3940256099942544/5224354917"; //TEST REWARDED AD ID
     string Rewarded_AD_ID = "MY REWARD ID HERE, CUT OUT";
 
    
     private RewardedAd rewardedAd;
 
     void Start()
     {
         timedRewardsInterface = GetComponent<TimedRewardsInterface>();
 
         
         MobileAds.Initialize(initStatus => { });
 
         this.RequestRewardedAd();
     }
 
     void Update()
     {
         if (isAdClosed)
         {
             if (isRewarded)
             {
                 // do all the actions
                 // reward the player
                 switch (rewardAmount)
                 {
                     case 250:
                         reward250 = GameObject.FindGameObjectWithTag("Reward250");
                         reward250.GetComponent<TimedRewardsInterface>().GiveReward();
                         //reward250.GetComponent<TimedRewards>().ClaimReward(0);
                         break;
 
                     case 750:
                         reward750 = GameObject.FindGameObjectWithTag("Reward750");
                         reward750.GetComponent<TimedRewardsInterface>().GiveReward();
                         //reward750.GetComponent<TimedRewards>().ClaimReward(0);
                         break;
                 }
 
                 isRewarded = false;
             }
             else
             {
                 // Ad closed but user skipped ads, so no reward 
                 // Ad your action here 
                 switch (rewardAmount)
                 {
                     case 250:
                         reward250 = GameObject.FindGameObjectWithTag("Reward250");
                         reward250.GetComponent<TimedRewards>().Reset();
                         break;
 
                     case 750:
                         reward750 = GameObject.FindGameObjectWithTag("Reward750");
                         reward750.GetComponent<TimedRewards>().Reset();
                         break;
                 }
 
             }
             isAdClosed = false;  // to make sure this action will happen only once.
         }
     }
 
     public void RequestRewardedAd()
     {
         this.rewardedAd = new RewardedAd(Rewarded_AD_ID);
 
                         //EVENTS//
 
         // Called when an ad request has successfully loaded.
         this.rewardedAd.OnAdLoaded += HandleRewardedAdLoaded;
         // Called when an ad request failed to load.
         this.rewardedAd.OnAdFailedToLoad += HandleRewardedAdFailedToLoad;
         // Called when an ad is shown.
         this.rewardedAd.OnAdOpening += HandleRewardedAdOpening;
         // Called when an ad request failed to show.
         this.rewardedAd.OnAdFailedToShow += HandleRewardedAdFailedToShow;
         // Called when the user should be rewarded for interacting with the ad.
         this.rewardedAd.OnUserEarnedReward += HandleUserEarnedReward;
         // Called when the ad is closed.
         this.rewardedAd.OnAdClosed += HandleRewardedAdClosed;
 
                       //END OF EVENTS//
 
         // Create an empty ad request.
         AdRequest request = new AdRequest.Builder().Build();
         // Load the rewarded ad with the request.
         this.rewardedAd.LoadAd(request);
     }
 
     public void ShowRewardedAd(int rewardAmount)
     {
         this.rewardAmount = rewardAmount;
 
         //if (this.rewardedAd.IsLoaded())
         //{
         //    this.rewardedAd.Show();
         //}
 
         switch (rewardAmount)
         {
             case 250:
                 reward250 = GameObject.FindGameObjectWithTag("Reward250");
                 reward250.GetComponent<TimedRewardsInterface>().GiveReward();
                 //reward250.GetComponent<TimedRewards>().ClaimReward(0);
                 break;
 
             case 750:
                 if (this.rewardedAd.IsLoaded())
                 {
                     this.rewardedAd.Show();
                 }
                 break;
         }
 
     }
     
     //EVENTS AND DELEGATES FOR ADS
     public void HandleRewardedAdLoaded(object sender, EventArgs args)
     {
         adStatus.text = "Ad Loaded";
     }
 
     public void HandleRewardedAdFailedToLoad(object sender, AdErrorEventArgs args)
     {
         adStatus.text = "Ad Failed To Load" + args.Message;
         StartCoroutine(SubAndUnsubEvents());
     }
 
     public void HandleRewardedAdOpening(object sender, EventArgs args)
     {
         adStatus.text = "Ad Opening";
     }
 
     public void HandleRewardedAdFailedToShow(object sender, AdErrorEventArgs args)
     {
         adStatus.text = "Ad Failed To Show" + args.Message;
         StartCoroutine(SubAndUnsubEvents());
     }
 
     public void HandleRewardedAdClosed(object sender, EventArgs args)
     {
         adStatus.text = "Ad Closed";
         StartCoroutine(SubAndUnsubEvents());
         isAdClosed = true;
     }
 
     public void HandleUserEarnedReward(object sender, GoogleMobileAds.Api.Reward args)
     {
         string type = args.Type;
         double amount = args.Amount;
         isRewarded = true;
 
 
         adStatus.text = "Rewarded " + amount.ToString() + " " + type;
     }
 
     private void OnDisable()
     {
         //EVENTS//
 
         // Called when an ad request has successfully loaded.
         this.rewardedAd.OnAdLoaded -= HandleRewardedAdLoaded;
         // Called when an ad request failed to load.
         this.rewardedAd.OnAdFailedToLoad -= HandleRewardedAdFailedToLoad;
         // Called when an ad is shown.
         this.rewardedAd.OnAdOpening -= HandleRewardedAdOpening;
         // Called when an ad request failed to show.
         this.rewardedAd.OnAdFailedToShow -= HandleRewardedAdFailedToShow;
         // Called when the user should be rewarded for interacting with the ad.
         this.rewardedAd.OnUserEarnedReward -= HandleUserEarnedReward;
         // Called when the ad is closed.
         this.rewardedAd.OnAdClosed -= HandleRewardedAdClosed;
 
         //END OF EVENTS//
     }
 
     IEnumerator SubAndUnsubEvents()
     {
         OnDisable();
         yield return new WaitForSeconds(0.1f);
         RequestRewardedAd();
     }
 }