I have answered your request in our Helpdesk. It seems that you clicked the Agile PrepCast Final Exam where there is an "Agree" button. The correct link for you is the PMI-ACP Simulator.
I also have a similar situation. Purchased the simulator today and on accessing the site gets the message "You have no access to this exam". Send email to the HD but they work only Weekdays, so will have to wait until Monday.
I also would have preferred to have this during the weekend so I can practice. Anyway waiting with ticket.
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