You would have expected BT to have checked that service was possible beforehand,
Trouble is, often this is sales people pushing the products …
Back in the day, when ADSL had just gone rate adaptive. We would repeatedly go out to the same properties in the boonies near Twyford, Berks. The three local cabs were 12, 13 and 14k from the exchange. You could swap out the E side onto the lowest attenuation one, but still no sync.
You’d tell the punters, but they wouldn’t accept it, because whoever sold it to them insisted it would work .
Some would sell their properties due to this, and 6 months later, you’d be back doing the same thing.
Received a letter just the other day ..