Leap of Faith by Hadouken! is not showing on UK spotify (they are a UK band) however their remix versions are... strange!
Below shows the song but not available to play
Would there be any reason for this?
The availability of music on Spotify is up to the artists and their music label.
If the music is unavailable, the artist or their music label may have decided to not make it available in Spotify.
Please check this Support article here for more info. :)