The manner of acting described in Para 2 of this Article shall be determined by the Commissioner, depending on the efficiency of the realization of rights to access information of public importance. In the event the Commissioner refers a request to the public authority from Para 2 of this Article, the deadline envisaged in Article 16 of this Law shall commence upon the day of receipt. Other Procedural Provisions Article 21 Provisions of the Law on General Administrative Procedure on decisions by a first instance body shall be applied to the procedure of a public authority, unless specified differently by this Law. IV Procedure Related to the Commissioner Right to a Complaint Article 22 An applicant may lodge a complaint to the Commissioner within 15 days upon receipt of the public authority decision, if: 1) In contravention of Paras 1 and 3 of Article 16 of this Law, the public authority refused to inform the applicant whether it holds specific information of public importance or whether it is otherwise accessible to it, refused to allow insight in the document containing the requested information, to issue i.e. send to the applicant a copy of the document, or failed to do so within the prescribed deadline; 2) In contravention of Para 2 of Article 16 of this Law, the public authority failed to reply to a submitted request within the prescribed deadline; 3) In contravention of Para 2 of Article 17 of this Law, the public authority conditioned the issuance of the copy of the document containing the requested information by payment of a fee exceeding the necessary costs of duplication; 4) The public authority does not allow insight in the document containing the requested information in the manner set forth in Para 1 of Article 18 of this Law; 5) The public authority does not allow insight in the document containing the requested information, i.e. does not issue a copy of the document in the manner prescribed in Para 4 of Article 18 of this Law. A complaint cannot be lodged against the decision of the National Assembly, the President of the Republic, Government of the Republic of Serbia, the Supreme Court of Serbia, the Constitutional Court and the republican Public Prosecutor. An administrative dispute complaint may be lodged against the decision in Para 2 of this Article, in accordance with law, on which the court notifies Commissioner ex officio. Consideration of Complaints by the Commissioner Article 23