iPhone data usage

[Sympha]

iPhone 6 plus data usage off the charts. No solutions found so far. I'm on normal quality For everything. Could it have something to do with offline mode? Someone please help.

[Swanny]

Hey there, we're definitely gonna need more info than that. Are you listening to tracks that are saved offline? How often are you listening to Spotify? Can you define what "off the charts" is for you?

[Sympha]

Thanks for your response. Spotify customer service has been unhelpful, only saying it is a "known issue." I had a Galaxy S4 and listened to Spotify while driving and working out every day (no WiFi). When I got my new iPhone 6 Plus the data usage shot up dramatically - like over 7 gigs a month, destroying our data plan. I have synced all my playlists and keep it in offline mode most of the time but when I want to search for new music (as in, that's the whole purpose of paying for Premium) it uses large amounts of data very quickly.