Do you have a omnibox on the outside of your property, or is there no VM cabling at all? If there is an outside box, you might be able to trace the cables to the inside, as some properties don't have a VM socket, just a trailing cable.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks