How do I enable AdMob to respond to inputs?

Hello! I'm currently in the last stage of implementing **AdMob to my Unity 4.6.3** game. I'm using the official [Google Mobile Ads Unity Plugin][1] **v 2.2.1.** The problem is **ads do not respond to touch input.** I came across this [similar solution][2] and attempted to implement it with no luck. I suspect that my problem also is due to the AndroidManifest.xml. Am I implementing the previous solution in the wrong place, or the code from the AdMob guide wrong? AndroidManifest.xml. ... [1]: https://github.com/googleads/googleads-mobile-plugins/tree/master/unity [2]: http://answers.unity3d.com/questions/685967/cant-click-ads-with-admob.html