I missed quite a few appointments in NUH before. Usually you can press the reschedule button which will direct you to a page. Press the ‘click here’ and they will get back to you within a few days via email. It works for me
i can never reschedule or cancel any appointments from the NUHS app. best is to call in the appointment hotline. the hotline can be impossible to get through so i normally email them to get back to me.
Thank you!
Mir