Can't get access to Premium on my Android

[user-removed]

Hi! I have a problem with Spotify Premium. I just got Premium, which I did using my computer. But it doesn't seem to work on my phone (it's an Android). I've tried logging out from both units, shutting down the program, restarting my phone.. Still doesn't work. How do I fix this!? 
Klara

[Joe]

Make sure to log in with the user name shown in the spotify receipt email. If it's a 10 digit number, you should log in with facebook.