Students who attend black belt club only and choose not to attend classes are not paying for a class. If you are planning to test for your black belt then you are responsible to learn the required material. The best way to learn is to attend class. Do not call your instructor (or have your parents call) to let me know that you have prioritized something instead of learning the material. Otherwise you have just told me that you have other priorities. Enroll in class, learn the material and take the test.