[jonah]

why has nobody done a national advertising campaign ie (leaflets ) and invited insured local wc/s to opt in ?

[windowwashers]

why has nobody done a national advertising campaign ie (leaflets ) and invited insured local wc/s to opt in ?

not yet 

[mark dew]

why has nobody done a national advertising campaign ie (leaflets ) and invited insured local wc/s to opt in ?

not yet 

That's an interesting project you are attempting there ww. I hope you are successful with it, regardless of the direction it might end up.