The wheel fits to the nylon lug underneath, it has to come off. I sorted it now thanks to a members PM with his number to ring.
I had to fill a cup almost full with boiling water and suspend the badge just under the surface of the water for a few seconds, prises straight off then. Next obstacle was the torx screw that had threadlock on it. To sort this heat the torx bit that comes with the scope in a flame and then hold it in the screw head to transfer the heat. Easy when you are told how.