Hello,
if you see dots on the pause button, and it’s not a phone I suppose you’re trying to use them on an iPad with the app?
In this case you might try to check if you’re logged in correctly, first (in the setting tabs on the bottom right).
If you click on pause/play within the lesson it’s actually streaming.
In order to download the lesson so that you can use it without being connected to the internet, for example, you have to go to the Level 2 list and follow these instruction with pics:
(App issue)