Absolutely useless. Their meter readings are estimated and way out even with smart meters installed. Getting any answers from them is highly unlikely, I sent 2 emails several weeks ago and all I got was an automated reply saying that they hadn't answered in 7 days and so they moved me up to priority, still didn't get an answer. I have been waiting over 3 weeks for a final bill but instead had 2 messages and phone calls demanding payment. They supposedly sent the bill by mail but I never got it. Their phone calls show Wakefield but all the staff are Asian with strong accents and I suspect an awful long way from Wakefield. Rather overrated with 1 star.