HI there @Boo thanks for getting in touch. As Allanr says, we can give you more detailed info about things like this if you email firstname.lastname@example.org or give us a ring on 0300 30 30 635 from 9:00 to 18:00 Monday to Friday, or pop onto the online chat on our website during the same hours.
Here’s how to read that meter, if it helps.
Press the green ‘A’ button until you see ‘TOTAL ACT IMPORT’ and a reading appears followed by kWh. This is your electricity reading.
If you have a two rate meter then you can get your two separate readings by pressing the green button a second time and third time.
There’s no simple rule to follow to know which rate is Day or Night. This varies from meter to meter. The information for your meter may be written on the meter itself or it may say Low (Night) and Normal (Day) next to the readings. Otherwise, try reading the meter twice during the day, and see which reading has moved-that’s the day reading. Be aware that the reading may have increased by only a fraction of a unit, you’ll likely need to look at the decimals.