Hiding banners

So I call apprever.hide() yet the banner then pops back up after about 5-10 secs after a scene change.  How can I get rid of it altogether?

Its a problem with application suspend/resume.  If I call hide then suspend and resume the app, the ad pops back up.  I can sort this but maybe it will help someone else out.

Its a problem with application suspend/resume.  If I call hide then suspend and resume the app, the ad pops back up.  I can sort this but maybe it will help someone else out.