Help. Spotify is running through my data plan. I download songs on wifi or phone data. Then couple days later when I pull up spotify app all songs are re-downloading. Ive been a premium user for about 1 yr and never had these issues. Why wont it keep my songs downloaded. I had about 800 left to down load yesterday and today its back at 2700...... Im getting upset that i am paying for premium so i can save my songs and I cant... Please help me.