Offline mode

[12130063692]

I am forced to turn my phone off to fly to work. So i set all my music to offline, it downloads at home on my wifi and i set spotify to offline mode before i get on the plane. When i reach work i turn my phone on. I log into spotify and am forced to go online to log in and all my music is no longer available offline. I am not willing to download it on 3G and have no other access to another source of internet.