Advertisements are NOT welcome!

I have your game word fu. I just noticed at the bottom of the screen when I start the game is an advertisement for other games of yours. I have two problems with this. First, I have paid for this game. It was not free. With that payment I expect to not see advertisements. How do I turn these advertisements off so I do not have to see them? Second, When I clicked on one of the advertisements my iphone restarted and i lost all of my scores in the games. How do I turn off the advertisements so I don't do this again?