In reply to:
Can TT/CW have downgraded my line without so much of a letter, phone call or email to me - not the slightest communication in any shape or form?
Well no if you are still getting BB from BT Retail, BT are responsible for your sync connection.
What TT can't do is unbundle your line without your specific permission, this is called slamming. As you are on a 1Meg fixed profile it is unlikely that this has been done; if they had your BB would be an up to 8Meg profile.
Edit: This is probably an ADSL Max capped profile. See other posts on this board. BT do this with badly performing lines to improve performance and to stop the line connecting at too fast a speed only to disconnect and reconnect again.
Looks like you have a line or DSLAM problem if previous service was better.
Why did you crosspost in here when you have already been told what was going on in the Technical forum?
Edited by deleted (Sat 08-Dec-07 13:37:05)