Plant Breeders Rights

Retired now and with a new house in the country gives me time to indulge the pleasure of gardening and my herbs in particular. I have created a small herb garden with a good selection of culinary herbs.
I enjoy propagating so often have plants in excess and occasionally sell them at Farmers Markets and the village fete.
Yesterday I bought a Helichrysum italicum Korma to add to my list. Much to my annoyance having got it home I found on the label in very small print “PVR. Must not be propagated without permission.”
Having read the excellent article on Plant Breeders Rights on the Cally Garden website I see this is incorrect wording. It seems it is not illegal to propagate pvr plants just to sell them without a licence.
You can propagate as many as you like as long as you keep them for yourself or give them away.
I bought the plant in a small general local nursery. Would they have to have a licence to sell it? I very much doubt they have.
There is no name on the label, it just say’s “ grown on a British Nursery” so how do I get permission to sell the dozen or so plants I produce each year? I don’t want to take a chance and be marched off to the police station.
I had thought of giving the plant away free and charging for the compost and pot. Is this too devious.