https://www.theregister.co.uk/2017/10/26/bt_to_cut_profit_from_landline_only_punters/

Former state monopoly BT has agreed to Ofcom's requests to hack more than a third off the price of monthly line rental for its one million landline-only punters across the UK.

Even though wholesale costs of providing them had fallen, rental prices had risen, pointed out Ofcom, which said it was concerned that landline-only customers were getting "poor value for money" relative to households that sign up for bundles (landline, broadband and or pay-TV services).