Hello @CharinCK !
If you have purchased the exam already then you can use the scheduler app to schedule your exam date and time here : https://rhtapps.redhat.com/individualexamscheduler/#/Dashboard .
You will get an email from Red Hat once you schedule the exam and you can use the above link to rechedule it also ( should you need it ).
If you are still facing any problem and need our help - please raise a support case and our team will help you with the scheduling process.
