How come everyone in the universe (apart from me) has to use the full brand name when referring to this product?
You don't say "do you want Nestle Aero?" or "would you like a Cadbury's Dairy Milk?".
Chocolate Orange will do fine. Cut the Terry's.
PS We used to have a neighbour called Terry and I once saw him when walking my dog, and I said 'Hiya Terry' and he said 'I think 'Hello' would be more appropriate.'