Hi Simone,
My first question is why do you want to change the name of your ordinary rate? You are required to have an ordinary rate, no matter as you need something for properties to default into. My suggestion would be to leave it as “Residential Ordinary” & that will mean everything but the sub-category/s.
Changing the name of the sub-category for clarity I understand.
Because it’s a name change, technically you have to notify the ratepayers so that they have the right to object etc. Otherwise some smarty might look at their notice & say we were never told this is our category & go to court & your structure then may be subject to litigation.
I know that’s not the answer you wanted but it’s the rules.
JT