(1) The public procurement tribunal shall decide on the basis of a hearing, which should be limited to one date. All parties shall have an opportunity to state their case. With the consent of the parties or in the case of the inadmissibility or manifest unfoundedness of the application, a decision may be taken on the basis of the files.
(2) The case may be discussed and decided also if the parties do not appear or are not duly represented at the hearing.