I've reported the offline issue a few times to Spotify, but there's been no information about an update to the current buggy app. You just have to look at the feedback on Marketplace to see how many people are having issues.
Anyway, I foolishly decided to sign up to premium again a couple of weeks ago to see if anything had changed. It hadn't. I requested a refund and it was processed very quickly. I suggest anyone else with a Windows Phone does the same if they have paid for a service that isn't working.
Hey, I'm asked everywhere this, but no sheduled updates soon... I do not received any response, but this is all I think these days.
My subscription is gone 07/07/12 and I'm happy to watch something else. Maybe Nokia Music for Mobile and Unlimited Spotify for PC. Yes, quality in sound is 160 kbps, but I can live with it... Sounds like good radio in my sound system.
People, do not complain here about Windows Phone app. Spotify does not listen as long as we complain here in Spotify.com site. I just write about this software in very-well knowed Technology blog in Finland. 🙂