Veritas Prep On Demand is available to students for 6 months after they purchase the product and is available free for those students who are also enrolled in a live course. Students in a course have access to Veritas Prep On Demand for 6 months after the start date of their course.
If you need additional time, you can extend your subscription to Veritas Prep On Demand for $99 for an additional 30 days.
You will be able to see how many days you have left before your subscription expires every time you access Veritas Prep on Demand.
Hope that answers your question!