There's a detailed guide on their websites and I dunno how you can miss this because the app is quite simple. Are u sure that we're talking about the same app? lol. Anyway, I know that sometimes people don't understand simple things even if they're not retarded. The same sometimes happens with me too. I've recently used the
tracking winit services and for some reason haven't understood how to use it properly. My friend was pretty surprised to hear that because this service is easy. You probably need to address this to someone IRL, so he could explain you what to do.