Solved
Installation to neighbour
My house is the one on the left. Why is my cable feeding into next door? Their box is clearly not connected to anything.
Are you a current VM customer? Do you know whether your neighbour is one ?
Are you "new" to the property? Is there an interior VM connection socket on the internal side of the omnibox?
As Carl as said - it could be a "temporary (!)" piggy back job.
