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Hi @Kashish , so it means that it is fully booked or there is no capacity left. There is probably a lot of Dec candidates deferring to that as well that’s why it’s best to book early. You just have to choose an available test center with a different time.
With CBT, you need to secure an appointment at an available test center. So you may need to try May21 and secure that slot now, because if Feb21 gets deferred most of the candidates are going to choose May21.