I'm changing my seats to leather ones but don't know how to get the back rest from the back seats off.

Any advice, pics, clips welcome

Changed out the cloth interior to leather on mine, so here's what you do.

To start with you will need a torx set.
Remove trim piece either side to reveal torx screw.
Remove the screws.
The screws are actually locking a pivoting hook in place.
Place flat head screwdriver at front and lever hook backwards.
It should just pop out.
(this video should help)

 FL2 now gone and have a couple of items left for sale:-

Brodit active iPhone holder + Brodit dash clip,
Bluetooth Music Streaming Module.

Magic I'll give it a go thanks