For me it is like this when I have collected all the colors of the chocolates and picked up the reward, a new box comes after another game and I can collect again from the beginning.
Hi @russman the chocolate box is a new feature and they are testing different scenarios for various players. I would hope they will eventually realise that for such a small reward (it is only worth doing for the lollipop), it only makes sense to use the feature if you need a lollipop right away. Meanwhile there has been a lot of discussion on here which you will find if you search "chocolate box"