I created my account and chose "Mark Almighty" as my display name. Shortly after I received my email confirmation email and clicked the link. The page that opened said my email was confirmed. But now my display name is "User 495552980" and my URL is https://soundcloud.com/user-495552980. I try to change these things and a message towards the top of the page says I still need to verify my email address.
UPDATE: I took my dog for his night walk and came back to find it has magically fixed itself.