First, try to resolve the matter by contacting your hierarchy or the relevant Service to discuss your problem and explain your point of view.

If you cannot find a suitable solution, you can introduce a request under Art. 1(1) of the Common Provisions and ask the President to take a decision relating to you. The President shall notify you of his decision within four months from the date of your request.

If at the end of this period you have received no reply to your request, this shall be deemed to constitute an implied decision rejecting it, against which a complaint may be lodged in accordance with Art. 1(2) of the Common Provisions.
If you want to make a complaint this must be made within three months. The President shall notify you of his decision within four months from the date on which the complaint was lodged.

If at the end of that period no reply to the complaint has been received, this shall be deemed to constitute an implied decision rejecting it, against which an appeal may be lodged under Art. 2 of the Common Provisions.

For more information see the Requests, Complaints and Appeals web page.