Sannasan

We have ben using this app for several weeks, my Kids were happy and they were improving in Maths, last week, the app change and now it just allow us to make simple operations, we can’t choose the Book we want to improve. So I have pay for a month and we can’t use it because now it’s to easy and they get bored. I have contacted with suport center and I haven’t recive any answer, so I’m very upsed.