opened
antoniocorreia
username_0
I'm having a problem after configured the Interstitial with this plugin.

First, I was able to display the Interstitial with the following config

```
let interConfig: AdMobFreeInterstitialConfig = {
        isTesting: false,
        autoShow: true,
        id: this.adconfig.idIntersticial,
      };

this.admob.interstitial.config(interConfig);

this.admob.interstitial
        .prepare()
        .then(() => {
          console.log('insterstitial displayed');
        })
        .catch((e) => console.log(e));
```
I'm calling this code twice in my Home.ts, and for each call I setup a listener to execute a specific action when the user closes the interstitial

```
 this.admob.on(this.admob.events.INTERSTITIAL_CLOSE).subscribe(() => {
       this.function1();
      });
```
and in another method

```
 this.admob.on(this.admob.events.INTERSTITIAL_CLOSE).subscribe(() => {
       this.function2();
      });
```
My problem is... the first time I close the interstitial everything works nicely, let's say I closed and the `this.function1()` method was called for the first scenario, but from the second call on the listeners are appended to the `INTERSTITIAL_CLOSE`, for example, if I execute the second scenario to close and execute `this.function2()` the `this.function1() `is called again after executing `this.function2()`.

What am I doing wrong? And how can I reset the listeners?
How to reset event listeners for INTERSTITIAL_CLOSE after closing an Ionic 3/Admob Free interstitial?
issue