Hi, does anyone know how to un-jam a tailgate lock? It's jammed solid and the emergency release doesn't unlock it.

It's a 2007 estate, lock is p/n 24467824 if that helps.

This morning the tailgate was open somehow - was closed ok last night. Tried to close it but it just bounced off the catch because the latch in the lock is jammed solid - no idea how it can do that...

I've removed the whole lock mechanism from the car but still can't get the latch to move at all - it's totally solid. Don't want to force it too much without understanding what's inside.

Any ideas on how to un-jam it...? Thanks.

Pete