A Brazilian And Thrush

outcome for students who have asked me during the information management with headquarters and any student has problems

As for the representatives of the 3E, the problem of teacher who does not want to give you the hours for the collective belief is solvable. I found some information relevant to what the rules of procedure:
Article 37 - Meetings student
2. Assembly of class: the case of students of a class and has a maximum duration of 2 hours to get over the month.
The request (with an indication of the days, hours, on the agenda) should be submitted at least five days before the class representatives in the Presidency and countersigned by the teacher / s of hours involved.
Please note that students hours to the assembly of class, shall be subject to shifts between the class teachers.
art.41 - Standards of conduct directed at teachers
Teachers called to preside over the meetings of class, surveillance for the purposes of an orderly meeting itself as well as enable and encourage the pursuit of important goals such as learning the habit of dialogue, respect for others and the most elementary rules of democracy.
So given that Article 37 provides that the class meetings should be subject to shifts between different teachers in order to do so, your teacher is "forced" to give you an hour of collective when its turn comes.
I also added Article 41 to keep this one of the duties that the teacher has during the assembly of class.
Regarding the representatives of this article 4F only in the rules relating to your problem travel on school
E) ACCOMPANYING
The attendants must measure every 15 students or fraction thereof, up to a maximum of three per class, including teachers of participating classes, preferably in disciplines related to the purpose of the trip. In any event, foreign travel, the escorts must be at least two, even with small classes: it is advisable in this case the combination with other class / i.
One of the accompanying teachers will have to be named "Parent", with specific task of supervision, organization of the daily program, responsibility for relations with service providers (hotels, restaurants, drivers, guides), mediation of disputes, the decision in emergency situations.
do not know how I can help you but could only provide this document. As you can see no deputy is appointed, then you can ask who forces you to look for a document that provides for our school.
I hope that it did help!
However, that applies to anyone who has problems like this, who wants to can contact me or my staff for anything because the door of the rights and duties is open and that is so. I, or anyone else for me, will try to help you solve any problem and to clarify any doubts.