If you are around, the installers will hopefully do as you request. Note some installers are third party and may not advise you when they are turning up.
As for co-ax or fibre, it depends on the area you are in. If it's a recent Project Lighting it will be RFoG (fibre) and co-ax internally to the Hub, or older existing infrastructure will be co-ax from the street cab to the house, and also inside to the Hub
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
The cabling has been installed fairly recently, just before the first lockdown. The civil contractor direct buried the fibre cables and not put them in ducts.
They'll have installed thin ducts back to the street cab not actual fibre. The actual fibre will be blown back to the cabinet once they've put the ducting into your property to the external wall box. It's blown from the external wall box back to the street cabinet and conected to an ONU in the external wall box at your end. From the wall box they run coax to wherever you want the router (and TV boxes if you take TV as well). The work to blow the fibre and fit the external box is usually done by a different team (and on a different day) to the work inside your property.