Poor Service

Post up some photos of the installation work which will the VM forum team when they reply to your post (usually within a few days).

Start keeping detailed notes of all VM's failures to activate your new service as you should be eligible for compensation

https://www.virginmedia.com/help/billing-and-payments/automatic-compensation

Has the service ever worked (i.e. worked initially then stopped working) or has it never been activated to give you a working connection?

Keep in mind that you have maximum leverage with VM to fix any problems within your 14 day cooling off period which starts from the point when your service is activated.

They don't have managers in India or Phillipines, they just pass you from one operator to another to make you feel you're being taken more seriously. They aren't even VM staff, the call centres are run by a French company. 

The main external cable goes to the outside wall box however the hole from inside is not planned to go into that box due to insufficient space and the fact the external work is not always done at the same time as the internal work.

That was how it was explained to me over the last two weeks.

One of our neighbours had an installer drill through from outside without checking what was inside. He just missed a radiator but damaged a pipe, flooding the carpet.