Why won’t Virgin Media complete my broadband installation?

The company won’t phone when promised or provide an explanationI have been trying to switch to Virgin broadband because it is by far the fastest in my area. The installation was booked for mid-August and, as at that point a full connection was not possible, we were connected to our neighbour’s cable with their consent.Since then, Virgin Media claims it is unable to complete my installation or deal with problems with the service. Apparently its system shows the installation as complet