Some possible points you want to talk about.

  1. Submission Guidelines
  2. Response Time
  3. Editorial Assistance
  4. Communication to Editor-In-Chief
  5. Quality of contents published
  6. Areas to improve
  7. Website design and look
  8. What did you like most from submission to publication?
  9. How did we handle your queries
  10. Social Media response?
  11. Suggestions?