Basically this is a Blu Ray + DVD set, obviously. But...
Blu Ray = Dub/Sub only.
DVD = Sub/Without dub
If you're a fan buying this for the dub and don't have a Blu Ray player, look elsewhere or wait for the American release if you have a multi region player.
Utter bizzare reasoning by Manga UK, they are obviously re packaging unsold sub dvd sets. It explains why they've made no effort to put the dub on the DVDs. There is enough room on the discs.