Also I think I'll dump my entire problem here
1) How to change/edit the sample?
2) How to make the users pay for the points?
3) How to change the currency of the points?
4) I tried to purchase the course without enough points and it works, my pints just went negative. Is there any way to prevent that?
Buy from site
In the original site, there's a popout that will process the payment, however, in the app, the popout won't show up, how to make popouts in the app?