Lock Pin plastic clip

Anyone know where i can get the little plastic clip that connect the lock pin bar to the lock.
Mine does not seem to be attached to the lock. its attached to the pin bar fine. or is their a knack to getting  it to engage with lock. 

as in the bit that moves up and down to lock/unlock the door? if its liek a mk2 one and im pretty sure it is, you have to take the lock block off the door then poke the plastic bit thru the hole before fittign it to the lock block.

waht it is the peg has a 'skirt' that needs to sit between the skin and block otherwise it will just drop straight off again

Yes that's the puppy. so it may not be broken just needs to be fitted properly any guides anywhere

not that i know of, all you do is undo the 2 large allen bolts holding lock block and pull it away from the door just enough that you can poke the peg thru the hole, then push peg onto block and bolt it back down. should be enough play to be able to do this without undoing any of the rods