The best way to do this is via the Towton Audio web app. You can access the web app once you have made a purchase and logged in to your account. The web app means that you can live stream your purchases.
If you would prefer not to stream your purchases, you can also choose to download your purchased MP3 files to your mobile device.
You can use the websites playback app to stream your purchased titles to your device.
If you would prefer to download your purchases you can use your device's MP3 player to play your files.