How did you log into Spotify? If you usually use an email address (facebook) and logged in with a username, that would take you to a new account. The other way around will cause this too so log out, and try logging in again to see if everything comes up correctly.
If you still have problems, dop a line to spotify using the online contact form and they'll help get this sorted. If you get an automated reply directing you back to the community or to the help pages, make sure to reply to it directly (even though it says not to) to speed things along.