Why can’t I reschedule my child’s appointment? You may have exceeded the number of rescheduled appointments or missed your appointment beyond the valid period. Related articles I am unable to reschedule my immunisation to an earlier date. What should I do? How can I reschedule my appointment at the Specialist Clinic? I have made an appointment for laboratory test but I am unable to make it on that day. How can I reschedule the appointment online? I am unable to add my newborn on HealthHub. Why is this so? NEHR Access History shows that my records in the NEHR were accessed on a day when I did not seek any care or treatment. What should I do?