Now Eon says
"The meter does not activate the cylinders / system to switch between peak & off-peak. This is done by the system / wiring."
They say I need to engage an electrician to change timers that aren't part of the Smart Meter, but I don't have any other timers. I've looked endlessly to try to understand if there's any other timer, but everything I read suggests this is entirely Eon's responsibility.
I've now also realised that there is virtually no off-peak usage registered whatsoever. Usage of any appliance up till 3am is registered on the day meter (I had to go to bed then!)
Can anyone offer an explanation as to what might be going on, and what Eon means by their comment above? I'm at my wit's end! Thank you.