I've been using spotify for a few months and I love it but I'm a bit disappointed by the lack of music created by bands I like (ie pencey prep) is there anything I can do to get more bands on spotify? Pencey prep are my favourite but they aren't on there.
Artists or Labels have to allow Spotify to stream their music or tracks. If something is missing, it's normally because of the artist or label rather than Spotify not having it (Spotify would love to be able to supply every piece of recorded music). You can have a look at the Music FAQ which has some more information