[BenMcr]

The official reason why it costs £10 more, is that you don't pay the £99 activation for the additional V+HD boxes when you get them installed. Obviously with you having your additional V+HD box installed by CEO the original circumstances are different, but that's the way it is set up on the computer system so the same has to apply to everyone.

And the Sky HD Bolt on is seperate again to any V+HD fees. If you wanted it on both V+HD boxes it would cost you a further £7 to add it to the additional HD box