Went with Greenstar after signing up to the Energy Club for a better deal away from the big six energy companies and would have paid less had I been on a premium tariff with British gas! It's SO expensive and a complete con in my experience. Like some other previous customers, when I came to leave I was landed with a £738 bill plus after paying that they asked for a further £45 and it was never adequately explained why that amount wasn't part of my final bill. TERRIBLE service and avoid them at all costs. Feel like I've been conned. I think this might be the next PPI scandal.