Fix 2 problems with unity mobile game - 1) modify character slide controls + 2) fix adverts not working

I need to someone to fix my games 2 issues:

issue 1: I have a endless runner game that uses the new unity controls system, when the player slides down on the mobile device if the finger gesture is not straight down the character slides diagonally, which i don't want

issue 2: I have setup google admob banner and interstitial adverts and placed them in my game which work fine in unity, but not on my mobile test phone. I have set the my mobile phone as a test device on google website but still no adverts appear on my mobile device