One PC and 2 Users creates different license seat on SEPM

I have recently got this issue where I have a PC insalled with the SEP client, when I login as an Administrator the SEPM creates one seat and when I login with another user it will again create another seat on the SEPM. The SEPM usually creats seats based on the PC and not on the users created on the same PC.

At the end of the days I SEPM gives a warning on the No of Seats Exceeding,