I was wondering, what does a downloaded playlist mean? I have downliaded several of my playlists during my 48-hour free trial on my android and now I can't listen to them? What is the point of having the app if I can't even listen to playlists without having to pay?!
Offline playlists is a premium account feature which allows you to download and store playlists on your device inside the Spotify app meaning you can listen to them when you don't have an internet connection.
You will have lost access to those playlists when your free trial ended, you need to subscribe to premium to be able to use Spotify on any mobile device. (apart from free mobile radio in the US).