Or to be strictly correct...
You register a fault with TT, they pass it onto BT wholesale, who lose it.... You register a fault again with TT, they pass it onto BT wholesale, who pass it to BT openreach and they then lose it.... you register a fault with TT who pass it onto BT wholesale, who pass it onto BT openreach, who turn up, say they need a working at heights team (or manhole team) and go away.........
(this then caries on for a few weeks along the same line....)