All of VM's equipment for TV and broadband is rented with the subscription for the service. VM do not sell their equipment. If you want a second V6 box for multiroom phone VM and ask for the upgrade and find out how much it will cost. You might see VM equipment advertised for sale. Don't buy it for two reasons. First it is stolen goods. All equipment belongs to VM. No one has the right to sell it. Second VM won't activate equipment they haven't provided.
As a Very Insightful Person, I'm here to share my knowledge. I don't work for Virgin Media.