As long as you give 24-hour notice by phone, you can reschedule a Private Lesson for another available date / time. No Private Lesson can be cancelled with less than 24-hour notice. Single full-priced lessons are valid within one year from the date of purchase. 5-Lesson Plans are valid for 10 weeks from the date of purchase. 10-Lesson Plans are valid for 20 weeks from the date of purchase.