My first account was created with facebook and only facebook. I had not put any additional info, like new password or other account name. Few weeks ago I received and account from a friend of mine with a Spotify Premium on it, so I figured out I could use it with my old account, unfortunately, dumb me clicked merge with facebook, which then bound the new account over the one I had not really registered.
All I know is that 1166778990 is my old account id and the new one is Wwilim. What I'm asking for is just letting me get my old account back, with all the stared music, people I've been following and such.