Loose fuel filler tube

I have a 2018 TRD Offroad Tacoma 4 door long bed and the fuel filler tube is loose or broke somewhere around the filler door. I am not having any leaks, but the tube moves around like a gasket is broken to hold it in place. Does anyone know if this is a simple fix or is it possible, I must replace the entire filler tube from the door to the tank and should take it in to Toyota to fix. I would rather do this myself, if possible, just not sure if I can replace a broken gasket at the entry point or need to do a full replacement? Thanks! Glenn

 

They remove/loosen the filler neck during the fuel pump recall, maybe it came undone.

Take a peak underneath with a light, there should be a fastener for the neck to the frame. 12mm bolt.

 

Thanks! I'll look and see if it came undone from after I had that recall work done.