Are all the locking nuts the same for the octavia vrs or are the splines different as I cannot find mine any where and would be handy to have one

Looking at other VAG forums, there at least 8 spline variations. Dealers have a master set. They can take one of your locking wheel nuts off to identify which pattern nut to order.

 

If you need to get one off urgently and don't mind damging it, use one of these:

 

http://www.halfords.com/motoring/garage-equipment/car-tools/laser-locking-wheel-nut-remover

I removed mine and replaced with ordinary nuts. Lockers are evil unless your wheels are expensive.