Alex Neill, Which? Managing Director of Home Products and Services, said:
“Iresa has failed to show the required improvement and the regulator is rightly preventing it inflicting further misery on new customers. But this will be of little comfort to current customers who will be deeply concerned and wanting to see evidence it is implementing long-term changes.
“Energy customers shouldn’t put up with shoddy service, unexpected price-hikes, or failure to resolve complaints. If you are disappointed with the service that you’re getting from your current energy provider you should look to switch to another supplier.”