iTunes - Album Only Playback Issue

I just bought an album on iTunes (Specifically, Mirror's Edge Catalyst Soundtrack by Solar Fields because it's rad).

Half of the songs on the album are 'Album Only', meaning I can only get them if I buy the whole album because some of them are 15mins+ long. Fair enough, I'm buying the whole album anyway.

1) The songs don't appear in my iTunes playlist unless I click 'Show Complete Album', despite the fact that I've just bought the complete album and they should be on my computer.

2) When I play the songs in question, they don't play the entire song, just a 1min snippet a la the preview of a song in the iTunes store. Meaning I don't actually have them, despite paying for the whole album.

To try and fix the issue, I've deleted the entire album off my computer, gone into 'account > purchased' and redownloaded the entire album. There's no change. I've gone back to the iTunes store to check, and under the album cover in the top left it says "purchased" so I've definitely bought the entire album.

Can anyone help?