THANK YOU, THANK YOU, THANK YOU. Followed these instructions step by step - and it’s all worked - take your time and follow advice in commnets. PRINT OUT THE INSTURCTIONS AND STICKY TAPE THE SCREWS TO THE CORRECT PAGE - can’t remember who gave this advice in the comments but its a must do (and thank you) makes it so much easier to do. Took me about an hour and im not all that tecnical. Use the smaller screen shots to help see how cables etc come apart and ensure that seat back into thier positions afterwards - can be a bit fiddle but be patient!! - thank you again.

Inluding the parts and correct (screwdriver) kit managed the fix for about a tenner!