If your package on Princeton's MCAT course has a "better score guarantee" included, you are guaranteed that you will get a higher score in the MCAT at the end of your program. If you have followed all learning protocols accordingly, you will get your money back. If you have shipped any program materials to your location, you will have the cost of the shipping deducted from your initial payment for the MCAT course and the remainder returned to you, according to the 100% money-back guarantee rule.