It is technically possible for you to relocate your V6 to another room, but there are a few things to consider.
If you relocate it yourself and use cabling that has NOT been supplied by Virgin and have an issue, they will not be able to help you with the problem.
If the new location is in the next room, there is noting to stop you drilling a couple of holes for the network and fibre connections and use the supplied cables. But if the cables are no long enough you are better off in the long run paying virgin to the do the relocation.
You can't learn anything from a mistake until you admit that you've made it.
I had my virgin box moved to another room and paid my £99 several years ago. I now want to move the box back to the original connection in a the original room. Is there any reason why I can't simply move the box and reconnect to the original white cable box myself?