Please move if in the wrong forum

I was all excited for the release of snaps new @home plans, however my happyness fell apart when it was explained to me that Naked Broadband didn't work the way I had imagined it to work. Without having any access or permission to change phone providers, I am either stuck on my curernt plan or if it works, get a second line in the house I am in, in order to go Naked on that line.

However, some questions have come about as I started looking up that information
 - Can you have a second line with Naked Broadband, in a house that already has one line with a phone on it and more importantly
 - Who installs second lines that would allow me to connect it to snap. Looking up Telecom, you can get a second line but then you must use Telecom as the provider.

Help!
Cheers