Status of the exam shows Purshased.
I also faced the same situation. I registered for 1Z0-931-F - Oracle Autonomous Database Cloud 2019 Specialist exam. For this purpose i had a chat with Pearson agent and he said that the status of the exam will change after 24 to 48 hours automatically. After that you can re-register your self for the exam but you will have to pay again for it.