Hit'n'run - Showing ads with supersonic

AdManager.cs

using System;
using UnityEngine;

public class AdManager : GameObjectSingleton<AdManager>
{
    public string appKey = "3fbb9d89";

    bool hasRewardBeenGiven;
    Action onSuccess;
    Action onCanceled;

    public override void Awake()
    {
        base.Awake();
        DontDestroyOnLoad( gameObject );
    }

    public void Start()
    {
        Supersonic.Agent.start();
        string uniqueUserId = SystemInfo.deviceUniqueIdentifier;
        Supersonic.Agent.initRewardedVideo( appKey, uniqueUserId );

        SupersonicEvents.onRewardedVideoAdRewardedEvent += RewardedVideoAdRewardedEvent;
        SupersonicEvents.onRewardedVideoAdClosedEvent += RewardedVideoAdClosedEvent;
    }

    public void Load()
    {
    }

    void RewardedVideoAdClosedEvent()
    {
        if ( hasRewardBeenGiven )
        {
            onSuccess();
        }
        else
        {
            onCanceled();
        }
    }

    void RewardedVideoAdRewardedEvent( SupersonicPlacement obj )
    {
        hasRewardBeenGiven = true;
    }

    public void ShowVideoAd( Action adOnSuccess, Action onFailure, Action AdOnCanceled )
    {
        if ( IsAdAvailable() )
        {
            hasRewardBeenGiven = false;
            this.onSuccess = adOnSuccess;
            this.onCanceled = AdOnCanceled;
            Supersonic.Agent.showRewardedVideo();
        }
        else
        {
            onFailure();
        }
    }

    public bool IsAdAvailable()
    {
#if UNITY_EDITOR
        return true;
#else
        return Supersonic.Agent.isRewardedVideoAvailable();
#endif
    }
}

DebugUI.cs

using System.Collections;
using UnityEngine;
using UnityEngine.UI;

public class DebugUI : MonoBehaviour
{
    public Button WatchAdButton;

    public Text Title;

    public void Start()
    {
        SupersonicEvents.onRewardedVideoInitSuccessEvent += RewardedVideoInitSuccessEvent;
        SupersonicEvents.onVideoAvailabilityChangedEvent += VideoAvailabilityChangedEvent;
        WatchAdButton.interactable = false;
        AdManager.Instance.Load();
        StartCoroutine( CheckForAdAvailabilityEverySecond() );
    }

    public IEnumerator CheckForAdAvailabilityEverySecond()
    {
        while ( true )
        {
            if ( AdManager.Instance.IsAdAvailable() )
            {
                WatchAdButton.interactable = true;
                Title.text = "Ads ARE available";
                Camera.main.backgroundColor = Color.green;
            }
            else
            {
                Title.text = "Ads not available";
                Camera.main.backgroundColor = Color.white;
                WatchAdButton.interactable = false;
            }
            yield return new WaitForSeconds( 1f );
        }
    }

    void RewardedVideoInitSuccessEvent()
    {
        Debug.Log( "RewardedVideoInitSuccessEvent" );
    }

    void VideoAvailabilityChangedEvent( bool available )
    {
        //Change the in-app 'Traffic Driver' state according to availability.
        bool rewardedVideoAvailability = available;
        Debug.Log( string.Format( "RewardedVideo is {0}", rewardedVideoAvailability ) );
    }

    public void WatchAdButtonListener()
    {
        if ( AdManager.Instance.IsAdAvailable() )
        {
            Debug.Log( "Ad is available" );
        }
        else
        {
            Debug.Log( "Ad isnt available" );
        }

        AdManager.Instance.ShowVideoAd(
            () => { Debug.Log( "adOnSuccess" ); },
            () => { Debug.Log( "onFailure" ); },
            () => { Debug.Log( "AdOnCanceled" ); } );
    }
}

The SupersonicEventsPrefab is on the scene, events are picked up.
Problem is that with Unity Ads the adOnSuccess action is called instead of the onCanceled action. Unlike with other ad networks where the adOnSuccess is called upon closing the ad.