I believe they are part of the Hut group (Zavvi, the Hut).
Since they are banned, I just ordered on Game UK instead. Game UK is also responsible for the official Nintendo UK store, right? So they should be somewhat safe?
You should be OK with Game, but they have had a few blunders with Nintendo pre-orders over the last couple of years
I'm sure something happened to the Wolly World pre-order but I can't find a link to it now
People on here have also had problems with preorder bonuses going missing too.