Spotify premium gone even though i'm still subscribed

[OlofI]

I noticed this morning that my spotify premium was gone on my cellphone, so i logged in on my computer to check if it was gone there too, it was. At the top of the screen a blue bar says:

"Your subscription with one of our partners have expired, so you are now using Spotify Free. (I'm in Sweden so i've tried to translate best i can)". My subscription is at Telia Sweden and with them i have bought a whole year of Spotify Premium, I began the subscription just before New Years Eve so only about 6 months have passed since. I have tried logging in and out to no avail (with both username and e-mail), and re-installing doesn't seem to work either. How do I fix this.