I found this with TalkTalk ( ex nildram) on small market 1 exchange less than 0.7Mb at times. They were not prepared to invest bandwidth on non LLU exchange.
Now with Eclipse, higher cost but reliable 24 hour connection speed
Their are a number of other suppliers, other than BT with their onerous 18 Month contract, most of whom have 1 month contract for ease of movement.
Plusnet, AAISP, Freeola depending on download usage requirement,
Edited by flippery (Tue 18-Dec-12 17:45:27)