I have a feeling TalkTalk have some sort of arrangement with Openreach whereby they can send "their own" engineers to many problem reports, similar to Openreach themselves using Kelly's and Quinn's for FTTC domestic installation in the recent past.
Only if the TT engineer finds there is a genuine line problem do they call Openreach.
( I could be entirely wrong about this, but there have definitely been reports on here that look as if that has happened).
Assuming I'm right then the first thing a TT person will do is regularise that wiring. Free.
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
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Edited by RobertoS (Tue 16-Aug-16 08:48:35)