How can a student unschedule a lesson?

When you first purchase a lesson, it is "unscheduled." However, once a lesson is scheduled, it can no longer be "unscheduled" by the student. The student can still ask their teacher to unscheduled it, and the lesson will be in the "pending for rescheduling" state.

When a lesson is in the "pending for rescheduling" state, it is essentially in the 'unscheduled' state. You don't need to ask the teacher to unschedule it, as it is already pending rescheduling. You will only be charged once the teacher or the student reschedules it and the teacher conducts the lesson and completes it.

An "unscheduled" lesson will remain unscheduled and will not be charged until it is scheduled again and completed by the teacher.

Note that the money you paid for the lesson will not appear in your wallet, but the lesson will still appear under the "UNSCHEDULED" tab in the lessons screen.