I've spotted a difference now - the arrow next to the E1 is different on each reading. E1> and <E1.
I've Googled those, and found this:
The left arrow indicates the energy exported into the electricity grid, and the right arrow shows the energy imported from the electricity grid to your premises ...
Based on that, I assume that the reading showing your usage (energy imported from the electricity grid) is the relevant one, and that is the one showing 32849.4 That is the one with E1> next to it.
That is just my take on it though. I'm no expert. Hopefully you will be able to get some clarification quickly from Shell.
And keep those photos, in case you need proof 