If you are unable to register to an Intake, there are 3 possibilities:
There is no Active Intake available at the moment. Please check back in the future when the exam centre starts accepting registrations.
You have already registered to the current available Intake. Please check under Your Examination to view/continue the registration.
The registration periods are over and you have missed the chance to take an exam at this series. Please check back in the next series, either May/June Series or October/November Series.