Does video adReward work ?

kzshare

I try to use adreward for get coin every 30 seconds.

when i try to pause game and change scenes but not any ads showing.

I set up Interstitial Ads with charboost and open test mode but not any ads showing too.

i don't sure, it will work when i uploaded to googleplay or not but i generate APK and test it on my mobile and it not work.

who know how to make it work, please teach me T_T

i learned from http://forums.gamesalad.com/discussion/91862/guru-video-1-25-feature-chartboost-reward-videos

sorry about my english,

The_Gamesalad_Guru

It can take 20 minutes or more for ads to start showing up once test mode is turned on.