Paying Money For Acorns To Play?

I love this game, but we shouldnt have to pay for acorns to play more. I LOVE the game so its hard to part with it when I get to a high level (10 or 11) when I get a notice I have to spend money to buy acorns. Is there a way to gain acorns in the game? You have to type in your email address to get "free" acorns. That SHOULDNT be in the game. They just want your money.When the creators fix this, I will continue playing the game.

#AwesomeGameBut..... about Mushroom Wars Mini