Depending on your plan, students take one or two lessons per week. If you don’t take the classes during a given week, they will expire and cannot roll over into the next week or month.
For example:
Let’s suppose your plan allows you to take two classes per week. You have from Monday through Sunday to take them. Once a lesson is skipped, missed, or not taken on any given week, it forfeits automatically. It cannot roll over to the following week or month.