Firstly I'd like to welcome you to the forums and say that I'm really sorry to hear that the installer was unable to get the phone line up and running for you.
Thank you for letting me know that you've been able to arrange a technician to call out on Saturday, I do understand how inconvenient this must be, and appreciate your patience.
Please let me know how this all goes for you.
With regards to the cable in the brown box, when you look in there, it can seem quite daunting, as you will see some loose wires. The telephone wire has the capacity for two or three lines (depending on the wire used). When a customer only has the one telephone line, the additional wires will be used as a spare wire for the line, and will remain unconnected until a technician changes over the wires, this will also mean that work at the local cab will need to be done, to connect the other end of those wires up. If there is an issue with the wires being disconnected, then the technician who calls on Saturday will be able to get that resolved for you.
Many thanks and apologies once again for any disruption caused.
Yes you are correct, the thinner of the two cables would be the telephone wire, this cable would shield about 6 other wires of different colours, I believe the phone line only requires two of those wires.
Thank you for all your replies, but that hasn't helped my problem I am still with no phone for 4 days the engineer should of made sure that my service should of been up and running the very next day, I have had one blaming the other and even calling another a lier!!!
I really have no faith in virgin media and don't think I will remain a loyal customer and will most certainly not recommend your service!!