I got an amazing response from Ian Livingston...
"I am sorry about this. I will ask one of our high level service team to contact you.
and not only that but his assistant Claire Heaton is liaising with me over fixing the problem. BT cannot apologise enough for the problem which apparently is caused by a fault in the service and partly due to the inconsistency of the postcode for the house. Royal Mail give one postcode, and the Deeds mention another which doesn't always appear on a lookup for the house address (as I found out when trying to arrange house insurance).
Still, they are keeping me informed, without me having to ring them all the time and I think I took the right step in contacting Ian as I don't believe that it would have been resolved without taking that step. To be fair I did give BT four opportunities to handle it at the 'normal' Joe Public level but after a lack of resolution I re-started at the top and it has started to yield some returns. I am having to hold onto the address until I get a working phone line, but really need to send it to family and friends soon.
Anyone who needs to get in touch with Ian over their (BT) services please drop me a line and I will let you have his email address.
Oh.. and by the way.. .when it is finished I plan on contacting him again to thank him for his kind assistance in resolving the order.. see not always the complaining type lol.