Universal Mobile Ads for iOS & Android

Hi! I bought this plug-in yesterday, everything works fine, but I have a small problem…
I made interstitial ads for Android and iOS. When I load it on Android, it pauses the game automaticaly but doesn’t do it on iOS.
Of course, I can pause game before showing ads … But how do I know when user closes the ad? For rewarded video there is a corresponding event “rewarded video closed”. But there is no such event for interstitial ad. I would like to start my level automatically after the ad is closed, without any additional actions from players. How can I solve this problem?