The best way to test whether the orientation of the readings is to simply check the meter before and after a half hour interval in the day time, when you’ve been using some electricity. You then know the register that changes is the day reading.
You can then double check that this matches what Bulb expect for you, on your online account - if not, please get in touch
@Chris_T14 This might be something we want to look into further. would you be able to pop a short email to email@example.com explaining, with a photo of the two readings? That will give us all the info we need to sort that out for you.