Yesterday I did multiple loading sessions. The Easee App as well as the portal show just the amount of charging from the first session.
Furthermore, I saw the status at the end of the session that was 15,89kW. In the report it only says 11,1kW. This should be fixed since the difference should be max. 2% as you promise marketing-wise.
We have now released the possibility for you to see the individual charging sessions in the app as part of Charger Consumption feature on the Charger Product Card.
Hope this gives you what you are looking for :)
EDIT: it looks like the consumed energy is visible 12-18 hours later in the app. Not quite real-time or directly after the session. Isn't it possible to see each individual charging session in the app? Would be much appreciated.