Octopus Flux Billing problems

ForestPCT

I have been on Octopus' Flux tariff for electricity for nearly a year and have had no billing issues with Octopus until this month. I have a SMETs 2 meter that was installed by Shell Energy back in 2023 and since switching to the Octopus tariff in Feb 2024, I normally get a monthly bill showing my gas usage/cost (on a fixed Octopus tariff for this) together with my electricity import and export amounts and costs broken down by the 3 daily rates. However, this month my bill only included my gas usage/cost and no figures for electricity.  I am in contact with Octopus over this but they haven't yet produced a bill for me and I'm concerned as to what has caused this issue. Here's why.

When I log in to my Octopus on-line account, I am able to le to look at my energy usage over time and can see how much electricity I've used for every day (broken down into the 3 daily rate periods and standing charge) since joining.  There were no breaks in this data until 6 days that were part of my last billing period when there is no data for 11th Dec 2024 and 13th through 17th Dec 2024.  I'm certain this lack of data has caused the billing issue but am assured by Octopus they will be able to produce an accurate and valid electricity bill in due course. However, for my peace of mind, can anyone confirm how Octopus collect the readings that enable them to show my daily usage/costs broken down by rate period?  Do they rely on the SMETS 2 meter sending a periodic reading, and, depending on the time of day of the reading, use that to work out the usage for a given rate period, or is there a more complex reading sent (say on a daily basis) that contains a breakdown of the day's usage by the rate periods?   Also, what happens, if, as seems to happened with me, there is a break in the readings transmissions? In circumstances where a consumer is on a single rate, it doesn't matter if one of more daily readings are lost since only a start of the month and end of the month reading is required to compute the usage and cost. For a multi-rate user, however, exact usage by the hour is required so how are reading omissions catered for in generating the monthly bill?  

Many thanks

Spies

They will do a manual pull of the xml file from the meter and work out your billing based off that, just light take a bit longer to generate a bill afterwards