I notice that my bills are always higher than what i have worked out myself on the data I have.
What can you do? Nothing really.
However on the Octopus website, they are starting to show more and more data that they are collecting themselves, which of course is different than what you will get from our sensors. The meter is king after all!
All I can tell you, is don't worry about it. You'll be happier and healthier lol!