We've been with Octopus for several years and were quite satisfied until something went wrong recently. Our gas meter stopped sending readings and now our bills have no gas costs at all so we have no idea how much we're using. We've found their Customer Services to be useless in solving the problem, with no tangible evidence that they've done anything in almost 4 months. After more than 40 emails, several phone calls and an official complaint made, there's still no progress. Several years ago, we had an unrelated problem which Octopus solved very quickly. So maybe they've grown too quickly and their service isn't what it used to be. Guessing though. When the problem is solved, I'll consider changing supplier. I recommend others stay away.