No. This is a common question as many students purchase the 1 month subscription and then realize that they need more time to study and then wish to renew at a discounted rate. We do not offer discounts for renewals as this is often abused. Offering discounts to renewals creates incentives for students to renew and hand off subscriptions to other students. We'd rather not have to police this, so we do not offer any discounts for renewals.
We recommend that students purchase the 3 or 6 month subscription to avoid having to renew.