Car and bomb coins frustrating

I like this game, but its really annoying when you spend 500 coins for a car or bomb coin and run a game and if your lucky youll get 2 cars and 2 bomb. That 20% rate is BS, its not worth buying them. I ran a game with the bomb on and got pretty far while running into some bombs killing my zombies and still not one turned to coins, what a waste of 500 coins!

Lexx7007 about Zombie Tsunami