Had sky multiroom fitted aswell in my house! no phone lines for either. being going for over a year now! no letters...the box also spent some time over in jersey aswell at my sisters house! no problem with it as long as you dont remove the card. also for the sky plus box offer that is currently going around, my parents had sky for a few years and wanted sky+. sky wanted x amount(a while back now) i said listen, i have been a sky customer for some time and i am not gonna pay that, well mr x, that is the going rate! ok then, please remove your dish from my wall i dont want sky anymore, hold on a second mr x, we dont want that, how about we give you a sky+ box and just pay for installation? nah remove it please...ok how about a free box and free installation? hhmmmm? ok tyvm!!
i recently moved house also, myself having the normal box for a while. i pulled the same line and they obliged!
the moral of the story.....sky make enough from their subscriptions...make them work for your money!!