Where are the add'l games purchased?? – Cooking Time 2 - Sushi Maker&&Preschool kids games Review

I purchased this app yesterday for $1.99 because my 4 yr old wanted to play additional games. I do not have the capability to access these additional games and now my son can only make 6-7 dishes; which becomes quite monotonous after you've made the same dish after a while. Where and how can these purchased games be accessed??!! I feel so cheated because he really enjoyed the app. P.s. app support is in Japanese...
Review by themrs2014 on Cooking Time 2 - Sushi Maker&&Preschool kids games.