Front fog lights not working

Hello all,

In recent foggy weather I discovered that the front fog lights aren't working (not completely necessary, I know, but it's nice to have them working since the are on the car!). The headlights are working, as are the rear fogs, so does anyone have any pointers of what I should look out for? I have a 56 plate Octy VRS and have consulted the user manual but I can't find which fuse relates to the front fogs?

Many thanks.