Thanks for posting and welcome to the community.
Sorry to hear your phoneline is not working. All our contact methods can be found here - https://virg.in/contactvm
Regarding the phoneline itself - is there a dial tone at all or what's happening?
Are you plugged into the master socket? It will have a larger socket and contain a logo of Virgin Media, NTL, Telewest or Nynex. Any extension sockets will be smaller and have no logo.
There are a few troubleshooting checks I will need you to perform to see if they are successful in resolving the issue. Can you:
• Check the phone is seated in the base unit correctly & powered ON.
• Remove all other equipment connected to telephone sockets.
• Unplug the phone and check another phone directly into the main socket ensuring this is a VM socket and not one with a BT or Sky logo. If no alternative handset is available then ensure the original phone is plugged into the main socket with no other pieces of equipment being plugged in.
Keep me posted