Ok I get it 
The eservice table holds holds only non-billing services, the missing billing services are contracts, which can be found in table ever, through the installation number associated with the PoD in euiinstln table. However, the scenarios exists in different time slices, which I couldnt find yet. Can someone tell me, what is the meaning of those periods, or how the SAP calculates them, or in which table are they stored? Thank you!
M