Evening, late I know, but does anyone know of a vauxhall breakers or such locoated in the southeast area? Had a small disagreement with a bollard this evening. Rear bumper is pushed in and the tailgate is creased and jammed shut. 
re the tail gate if you just hit the bumper
it will be due to the rear panel where bummer brackets are
mine push in there when i was rear ended at the lights
once you get the boot open and trim off it usually knock back prity easy on the omegas
if you not hit it hard enough to bend the floor pan
and it has to be a prity hard hit to do that so unless you really slammed into post
ill bet floor is fine
how bad the bumper i put a 5 inch hole in mine in a tinny 18inch high bollard you couldn't see from in side car
i had it plastic welded and filled and painted buy a local spot repair guy, a rusty arch done and a scratched sill for 200 quid
the lock jamming will be due to pressure as its on that panel that's pushed in
try one guy with pushing with feet or giving a outward kick from inside car while you try to open from out side