(d) is defective or which is presented otherwise than in accordance with these Regulations or the directions of the Commission; or (e) has been filed with any other authority or body that has jurisdiction to hear and determine the dispute. (8) The Commission shall, before declining to accept a letter or Memorandum of Complaint, give the complainant an opportunity to be heard. (9) The Commission shall not decline to resolve for the reason of defects in the pleadings or in the presentation, without giving an opportunity to the person filing the complaint to rectify the defects within the period the Commission specified for that purpose. (10) Where the Commission has declined to resolve a dispute, it shall notify the parties to the dispute, in writing, stating the reasons for declining. 5. Response to the Complaint. (1) Where the Commission accepts to resolve a dispute, it shall, within seven days of receiving a notification, notify the party against whom the complaint was made and serve the party with the letter or Memorandum of Complaint. (2) The party against whom a complaint has been made shall, within twenty-one days after being notified of dispute under paragraph (1), file with the Commission and serve the complainant with, a response signed by that party, or where the party is a corporation by agent or authorized official of the corporation. (3) The Commission may invite the complainant to file a reply to the response within a specified time. 6. Withdrawal of dispute. (1) A complainant may, at any time before the dispute is heard, withdraw the letter or Memorandum of Complaint by notifying the Commission, in writing. (2) The Commission shall, where a complainant withdraws a letter or Memorandum of Complaint make such orders relating to costs as it considers fit. 7. Hearing of disputes. (1) The Commission may, for the purpose of resolving a dispute, hold such hearings, inquiries and investigations, as it may consider appropriate.