Hey guys, I've never posted in this neck of the woods before, so I'm a beginner to this and I need some help.

My new bass arrived today (fender jazz 24) and the volume nob is loose or something. When you pull it, it comes out with no resistance at all. I've used an allen key on the side of the knob and that just removes the knob from the post...thingy(don't know what it is). Does anybody have some advice on how I could fix this?
If music was the food of love I'd be a fat romantic slob.
buy a better locking knob?.. or use super glue.. hehe.. i don't know..

PRS SE Standard
Ibanez AEG8E-NT w/ Seymour Duncan Woody SC
Yupangco Classical Guitar
Korg AX5G
Marshall MG50DFX
Vox Pathfinder 15R