Ladder bulk head

[chardy8]

Hi i am looking for a ladder bulkhead for 08 onwards berlingo van the one that is for the 3 seater! It has a bit that takes the seat belt! I recently bought a 08van and this was missing so the seat belt is screwed into the top of van where the ladder bulk head goes! Which is a pain as if you have someone short in the middle it rides there face! And its a pain to pull across you!
I live in cornwall but am willing to pay for a courier to pick one up thanks