Freelander 2 (LR2) Rear centre seat belt removal

Hiya, I need to change my rear centre seat belt on my 2008 fl2
I’ve undone the bolt and can wiggle it about through the top but no way is it coming out through the top I think?
It doesn’t have a centre armrest
Any ideas on how to get this out without undoing the stitching on my back seats, any help or advice much appreciated. Cheers, Bill

I thought it was built into the rear seat back.
Was webbing damaged or was it jamming ? Jamming can be caused by seat back not being securely latched.

Normally access to inside the seat cover is through the bottom of the seat, where the front and back panel meets. I've not studied mine closely, as the belt is working fine.