Student Assistance Office (SAO) - located on the first floor of the International Cooperation Centre (IFE faculty), next to the stairs. Basically, students helping students. The first place you go to in order to complete all formalities after your arrival to Lodz (and the last one that you visit when you are about to leave). If you have any questions concerning your Learning Agreement, go there and ask.
Contact to SAO: firstname.lastname@example.org
Student Mobility Division - also located on the first floor of the International Cooperation Centre, next to the stairs, but on the opposite side (room 113). They are responsible for accepting exchange students and may help you in difficult cases.
Contact to SMD: ICC website