How to get pages for free ?

Hi all ,
I scored a new 5s yesterday. When I originally set it up it gave me the option to get all the apple apps. As I didn't have time I declined and opted for later.
Now when I try to download pages it tries to charge me £6.99.
This is since I have done a restore from my old image.
Does anyone have any ideas on how to get it for free ?

Thanks in advance.

Got there in the end . Just browsing on the ap store and the screen with all the apple apps popped up.
Thanks anyway