Givi Top Box On Striple

I know it may look daft but I have bought a Givi e370n top box for my 2011 street triple. I am having trouble getting the first plates attached to the frame of my bike. Has anyone fitted one of these before?

The problem is the bolt it tells me to put in is too small for the hole it's going through with no threads in the hole either. Have I had something removed from my bike before buying it? Or are the bolts supposed to sit lose and then the arms hold it in place?