Sorry for the late reply.
Remove the dash trim under the steering wheel and unplug the connector behind the headlight switch.
Remove the black air ducting held on by two phillips screws and look up towards the centre of the dash.
Youll see a black actuator with a white arm coming off it with a green connector going into it.
Do a HVAC relearn and you will see the arm moving unless its completely stripped. Put a finger on it to confirm its the one clicking.
You absolute legend. I'm lucky I checked this again, trying to find this thread link to help someone else. Thank you so much, will get this done asap and let you know what I find. Hopefully others have the same problem.
Also general note for anyone interested; Ricey you might find this weird:
If you are having this problem and cant demist your windshield
1. (turn the car off) hold in the rear demister (square) button and turn ingition to accessories. Hold the button for around 10-15 seconds and you will hear the vents realigning, release the button
.(realigning wont fix this issue completely).
2. If you get this right, repeat the process, but this time halfway through the vents realigning themselves turn the car on and release the button. If you get it right you will have heat coming through your front demister vents but no where else. Doesnt fix the issue but you at least will be able to see.