I moved to this house a few months ago. Signed up with the existing supplier - Eon. Previous occupants had been with Eon and had had the meter installed sometime in previous year (smart meter). Previous occupants were on a single tariff and I signed up to same, before I looked at options for switching.
Yes, one submits two readings. Eon then charges same rate for each. It’s on the bills.
Ok, this is becoming clear now. You didn’t mention that it was a smart meter, and this changes things enormously.
A smart meter isn’t fixed to single-rate, or two-rate, or any-rate. It can be configured remotely. For example, I have an Elster AS300P smart meter installed by Scottish Power. It was operated as a single-rate meter, and continued to be so when I switched to Bulb. Just recently, I have switched to the Bulb smart time-of-use tariff trial, which has three rates. The meter configuration was converted over-the-air. The meter itself can actually support a total of 48 different rates, i.e., a different rate for each potential half-hourly billing period. If I decide I don’t like the smart tariff, I can simply switch back to a single-rate tariff and they can reconfigure the meter again. Previously all of this would have required the meter to be physically replaced.
It makes no sense that Eon were operating your meter as a two-rate tariff but charging the same price for each. The meter should be been configured as a single rate device when it was installed. Even if the previous occupiers actually did want an Economy-7-like two-rate tariff, there’s no reason why Eon couldn’t at any point have switched the meter back to a single rate tariff with only one counter register, and that’s what they should have done before allowing the supplier switch to take place.
The problem you have now is that Bulb probably can’t read your smart meter, so they can’t reconfigure it themselves back to being a single-rate device. Bulb can read approximately 1/3 of the installed SMETS1 meter base.
This isn’t Bulb’s fault. It’s EOn that have messed this up by having some weird two-rate tariff that they treat as a single-rate tariff. You’ve switched with a two-rate meter and so now you continue to have a standard two-rate tariff. In the first instance I would contact EOn and ask them what they’re playing at. If you don’t get anywhere then I think the best course of action is to accept the switch back to EOn. I assume by goodwill Bulb mean they’ll charge your usage so far as if it were all single-rate, even though it wasn’t. You can then take it up again with EOn and get them to sort out their stupid meter arrangement.
I’m sorry this isn’t really what you want to hear and is just more unwanted hassle.