How to remove an add?

Hi, I have downloaded the Inner-active Add from the asset store, and am working on implementing it in my game. They explain quite well how to make an add show up, but I can find nowhere how to make it go away. I have emailed there tech support, but with no luck.

So here is my question: Can I disable this add through JavaScript? The add is "called" with JS, so it seems like I should be able to make it go away with JavaScript also.

Here is the code I use to make the add appear in the top right corner of my screen. I have the code attached to an object in my main menu scene, but the add follows me into any other scene.

 var jc : AndroidJavaClass;
 var ia : AndroidJavaClass;
 var currentActivity : AndroidJavaObject;
 var iaInstance : AndroidJavaObject;
 
 var once : boolean = true;
 
 // Use this for initialization
 function Start ()
 {
     AndroidJNI.AttachCurrentThread();
     
     jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
     currentActivity = jc.GetStatic.<AndroidJavaObject>("currentActivity");
     
     ia = new AndroidJavaClass("com.inneractive.InneractiveAdPlugin");
     ia.CallStatic("requestInneractiveAd", currentActivity, "ADZdevelopment_Test_Android");
     
     iaInstance = ia.CallStatic.<AndroidJavaObject>("getInneractiveAdInstance");
 }
 
 // Update is called once per frame
 function Update ()
 {
     if (once)
     {
         once = false;
         
         iaInstance.Call("setRefreshInterval", 60);
         iaInstance.Call("setPosition", 40, 40);
         iaInstance.Call("setAdType", 0);
         iaInstance.Call("displayAd");
     }
 }

Is this something that needs to be taken care of through the iaInstance.Call()? Or can I make the add go away through scripting?

Thanks for any help!