You do not need to buy review material twice. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date, and we will process a full refund within seven days of verification. Exclusions: exams taken within three days of purchase, candidate names that do not match the payer, and free or expired products. If you would rather switch tracks, we will exchange your product for two others of equal value at no cost.