I am having this exact same issue. I just registered a premium account and I am able to access and use it just fine on my PC; however, when I am trying on my iPhone or iPad I receive the following error: "Login Failed - Could not login to Spotify. Maybe you've changed or misspelled the password?"
I know I haven't misspelled it because it work on my PC. I have tried to delete and reinstall the app as well as powercycle my devices several times with no luck.
Correct. That's the exact message that I am receiving as well. This issue plus it seems like you cannot download albums ...I think I will just stick with MOG for now. Was really hoping for something different.