I wrote to the support, they told me to post it here.
I am a premium customer for over a year now and the BlackBerry app is totally useless. I have to re-sync every second time I open the app. If I added a new song to my playlist it NEVER updates, I always have to reset and re-sync or I have to reinstall the entire app.
Thats so darn annoying. I don't even open the app anymore and listen to radio instead because I am tired of that.
I tried everything! EVERYTHING what was written here in the forums, nothing helps. It also asks for switching to online mode because it doesn't login when I set it to offline. I am so done with spotify, improve this app or I am gone. 10 bucks is too much for a non working app.