Tech staff can request a port change, particularly if they think that your current port is faulty or that you would see a benefit by been on the newer equipment

"Dear Richard,
You are presently trained up at 2880/448 with interleaving of “0” on the connection. The estimated average speed for your location is up to 3mbps . This information is obtained via our broadband speed checker located at
http://www.karoo.co.uk/products/broadband/tools/broadband-speed-checker.aspx Please be aware that this is an estimate and that as of this time we have no way of determining an exact speed for your property.
As you will see from the speed checker, it may be possible to get a slightly higher speed by moving to one of our new packages that take advantage of the adsl2+ technology. Of course I would advise that before moving to one of these packages you check to see of your device is indeed adsl2+ compatible. You can move to a new package if you want to by calling our customer services team on 602444.
As it stands at the moment you have not been placed any extended reach profile as per your fault report raised with us on 7th September 2009.
I hope that this email has been of assistance to you.
Kind regards,
EDITED OUT."