Not sure who to contact on Bretonia laws matter but I suppose as with all houses, militaries are the ones having most influence over it.
If you want to enforce Bretonia - Rheinland conflict's rules it must be in the laws. Only there do many people look and see what's illegal. You cannot claim that your announcement in 7th or such page in Comm Channel is easily accessible and should be known to general population.
Laws are black and white. You look at them and you see what can do it or you can't.