(3) The application and the accompanying documents shall be submitted in the Bulgarian language. (4) Should any documents covered under Paragraphs (1) and (2) be missing and/or non-conforming, the Commission shall notify the applicant in writing to cure the deficiencies or non-conformities within seven days after receipt of the notification. In case of a failure to cure the deficiencies or non-conformities within the time limit as allowed, the application shall not be considered. Article 84. (1) The Commission shall refuse to grant an authorization by reasoned decision where: 1. (supplemented, SG No. 105/2011, effective 29.12.2011) a scarce resource is not available, including where not coordinated at national level or, where necessary, at international level; 2. the use of the scarce resource would jeopardize national security or is contrary to international obligations arising from an effective international treaty whereto the Republic of Bulgaria is a party; 3. the person who or which applies for an authorization: (a) is adjudicated bankrupt of is subject to pending bankruptcy proceedings or is being wound up; (b) is disqualified from carrying on commercial business; (c) (amended, SG No. 17/2009) incurs any public obligations to the State, including to the Commission and to social insurance funds, established by an effective act of a competent authority, save as where a rescheduling or deferral of the said obligations has been allowed; (d) has had an authorization for use of an individually assigned scarce resource for the same type of electronic communications for the period determined by the Commission withdrawn therefrom. (2) The circumstances referred to in Item 3 (a) and (c) of Paragraph (1) shall be certified by a document issued by the relevant competent authority, and the circumstances referred to in Item 3 (b) shall be certified by a declaration by the natural person. (3) The provision of Item 3 (b) of Paragraph (3) shall furthermore apply to managing directors or members of management bodies of the undertaking. Article 85. The undertakings implementing public electronic communications shall be obligated to notify the Commission of any changes in the circumstances recordable in the Commercial Register within fourteen days after occurrence of any such changes. Section IV Granting of Authorization for Use of Individually Assigned Scarce Resource Article 86. (1) The Commission shall adopt a decision on the granting of an authorization for use of an individually assigned scarce resource - radio spectrum, within six weeks after receipt of the application or after curing of the deficiencies in case no international coordination is required of the radio frequencies and the radio frequency bands, as well as of the technical characteristics of the radio equipment which will use the said frequencies and bands. (2) Where an application has been submitted for use of an individually assigned scarce resource, which requires international coordination of the radio frequencies and the radio frequency bands, as well as of the technical characteristics of the radio equipment which will use the said frequencies and bands, the Commission shall perform the said coordination within eight months after the date of submission of the application and shall notify the applicant of the need of coordination within seven days after submission of the application. (3) In case an international instrument, whereto the Republic of Bulgaria is a party, establishes a time limit for coordination under Paragraph (2) and the said time limit is longer than eight months, the coordination procedure shall be conducted within the time limit established by the international