The charging sessions of a Smappee EV Line product are found in the Smappee Dashboard (https://dashboard.smappee.net/) via the "Transactions" card.
By selecting a Charging Hub you will see the sessions of all its charging stations
By selecting a charging station will only see its sessions.
You can export the sessions by clicking on the download button, also make sure you've selected the right period via the calender button on the right.