I've just recently lost tens of thousands of bonus coins because ads won't play. My screen will quickly flash a black screen and go back to the game instead of loading an advertisement. Also, these new ads - that require you to wait 15 seconds, click next, wait 15 seconds, click close - are going to make me uninstall this game soon. They drive me insane. I don't even complain about the ads that force load the app store before you can click the "x." Not buying a useless premium subscription.