Hello Nagaraj,
The PMP Exam Simulator will automatically send you an email 7 days before it expires. It will send a second email on the day of expiry. Both emails contain a link so that you can order an extension.
If you did not receive those emails, please contact This email address is being protected from spambots. You need JavaScript enabled to view it. - But when you write, please ask for assistance with the Simulator and not with the PrepCast, because the PrepCast is our video training course.