I'm on it, though they seem to have forgotted to remind me for a few months. Possibly because we've had 4 visits by a meter reader in 2 months!?
And one annoying thing is that all the tariffs are based on X for this much, then Y for this much, but the little meter doobry can only accept either flat rate or chronological tariff switching, meaning the £s are really only an average value that is inconsistent depending on changing use. The kwh readout is of course correct though, we average about 7-8 per day currently. Just wish gas was observable too.