It does exist!!! After ordering 4 others with them either being the wrong colour or wrong switch holes - I have it.

Vauxhall said it didnt exisit and EPC does not list it correctly, but here it is.

The existence of this panel means that Astra Coupe owners with heated seat can fit a traction control button with the correct switch panel in the correct titanium colour. Vauxhall never made a car with uses this item - hense it is hard to track down.