I assume that this is the email that you are talking about:
Dear Applicant,
Thank you for your application for the Dragonair Pre-Qualified Cadet Programme.
Only limited vacancies for the Pre-Qualified Cadet program will be available this year, and shortlisted candidates will be notified in due course.
Please continue to update your application profile and CV shall any of your personal or professional detail changes.
Yours Sincerely
Flight Crew Recruitment
Dragonair
Good luck to all those waiting