If any of you have an NPower smart meter then please do yourself a favour and check they're getting meter readings. I'd called them a few times as we sometimes get a message saying that network connectivity has been lost but they assured as that the readings are coming though.
Our latest bill arrived a few days ago and it transpires that the last automated reading they have is from September 30th. I've called them about 3 times since then and was assured that everything was OK. They have a meter reading from November when someone cale and read them but our latest bill is an estimate and is way off. We've submitted readings but they don't accept them because they differ more than they would usually expect so they need to send someone to do a reading.
Apparently they have a technical issue which is preventing them receiving automated readings. Couple that with the technical issues they had with their billing platform that lasted almost a year and you can imagine we're not impressed at all with them.
These meters are not so smart as I first though.