If you miss the exam date without cancelling or rescheduling in advance and paying the necessary fee, you will be considered a no-show and will have to forfeit the exam fee or rewrite fee you already paid, unless there is an extenuating circumstance.
For exam centers, you must arrive at the testing center at least 30 minutes prior to the scheduled exam time. For remote proctored exams, if you are more than 15 minutes late for the exam, you will not be permitted to write the exam and will have to forfeit the exam fee or rewrite fee you already paid.