I guess we the one who use the payment method via redeeming Spotify premium code have this one common problem. The problem which we had no notification on the fact that our premium are expiring in a few days prior. I every month would encounter this problem. We only knew that it had expired is when the ads started to pop out. Since it kicked us from being Premium, it also automatically deleted all our offline songs even after bought the premium account because we didn't activate it before the expiration date. 793 songs with very high quality sound. Every month and imagine how many cellular data I had to spend on redownloading it. Come on spotify. You could do much better than this.