Wallplate for wall-mounted radiator valve

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Hello all. I am migrating all of my radiator valves to Tado smart radiator valves. And I've run into a minor issue. I have a radiator installed in the floor with a vent to heat my dining room area. The radiator valve for this heating is installed in the wall. And there is a wallplate (similar to what you would use for a light switch) to give it a clean finish. Problem is that the hole in the wallplate for the old radiator valve is smaller than the diameter of the tado valve. So, I cannot install the tado valve cleanly. Does anyone know where I can find a 3rd party solution for this? I asked Tado Support and they said that they do not make such a finishing plate. Thank you.

Brian