if some body tells me where i should go
you should try and contact people responsible for recruitment
Grzegorz_ is right, you could go to an office called dziekanat
, that's where they deal with students' problems.
If they won't be able to help you, try to talk to the dean (dziekan) or the president of the university (rektor). In many universities there is also a person called rektor do spraw studentów
, who also deals with problems that concern students.