I log into spotify.com using my facebook details and recently purchased a subscription for premium spotify. I cannot log into my iphone spotify app with my facebook details and resetting spotify password doesnt generate email?
Do you have the Facebook application installed on your phone. On mine, when I log into Spotify using Facebook, it sends me into the Facebook app on the phone briefly before logging me in to Spotify. If you don't have it on your phone, this might not work. If you do have it installed, are you logged into the app?
If this doesn't help, I don't have any other ideas at the moment - perhaps someone else will chime in if you still have trouble.