Thanks picbits :) I feel much happier now about this whole situation now that I know things are moving ahead but also, most importantly, I have been given detailed information by PN and BT OR as to the state of my order and line fault.
Hopefully on monday I will be able to get a date within a few days of then to complete the installation. After suffering for years with a 2.5mbit connection the anticipation of getting a reported 69mbit is exciting :)
I just noticed on my closed tickets there is a new ticket from 8:49 this evening saying :
"An update report has been received for this account.
The broadband service is now being transferred to the 21C Network.
The transfer will complete by midnight on 09/03/2013."
As I don't really understand what 21C Network is, am I to assume this is ok and nothing to worry about?