Admob is not working in my APP

Admob is not working in my APP, It’s working in test mode only but production mode is not working any how, whenever I changed id: “ca-app-pub-xxxxxxxxxxxx/xxxxxxxxxxxxxx”, Its stopped working.

showBanner() {
        let bannerConfig: AdMobFreeBannerConfig = {
            isTesting: true// Remove in production
            autoShow: true,
            id: "ca-app-pub-xxxxxxxxxxxx/xxxxxxxxxxxxxx",
        this.admob.banner.prepare().then(() => {
            // success
        }).catch(e => console.log(e));

Find any solution? Having trouble with it too… In my case its just showing test ads.

isTesting: false
have you try this ?