I'd double check if anything else seems to be missing. E.g. I can see a bit of solder but I can't see any wire. Or the 3-way switch.

Look at this kit's main picture, which should have everything in your kit apart from the neck plate and screws. https://www.pitbullguitars.com/shop/...-kit-ash-body/

If you've got everything else, it may simply be the factory put in a bag of parts for a set-neck, rather than a bolt-on.