Yeah but I have never needed any “service”. It’s hardly ground breaking. They deliver gas and electricity, and life keeps chugging. In the last 5 years, the only supplier that overcharged me was NPower. In all other cases, I have a monhtly direct debit setup with Ovo or E.ON, I usually end up in credit, and they refund me the difference at the end. I am currently on E.ON Go Online 1 Year v16 plan.
Gas: 3.216p per kWH with standing charge of 16.800p per day
Electricity: 14.133p per kWh with standing charge of 13.650p per day