General Adjusting the handbrake

[monstyr]

Can anyone tell me if and where there may be a cable adjuster for the handbrake?

The cable has a bicycle type cable connecter under the left sliding door and the rear wire keeps jumping out of the connector block,an easy fix but really irritating as I cant see where to try and tighten it up to stop it happening again.

 

[monstyr]

Sorry,that should be under the drivers side sliding door.

No one know anything about this then?
Brake works fine, cables themselves are in good condition, all they'll need is an adjuster to pull on one side to tension them securely into the connector block.
Buying a car without having access to a haynes manual or similar was a big mistake as it turns such simple jobs into problems.