When enrolling in the semi-yearly or yearly subscriptions, they will automatically renew at the period you choose. You may cancel any time during your subscription term and you will still have access to The Program until the end of that term.
After that term is complete, you will no longer have access to The Program and will have to re-enroll to continue the program. Your progress will be saved if you have a lapse in access.
To check if your subscription is active or not, click here. You can cancel it from this page as well.