Critics also accuse watchdog of bowing to pressure from big six suppliers after proposals to address overcharging of customers
The competition watchdog has been warned that proposals to give energy suppliers access to a new industry-wide database of customers could unleash a junk mail deluge.
The plan was one of several remedies proposed by the Competition and Markets Authority to reform an energy market in which households are overcharged £1.7bn a year.
Related: Big six’s hearts warmed by watchdog as standard tariff payers left out in cold
Related: UK watchdog accused of bowing to pressure from ‘big six’ energy suppliers