Because of the nature of the product, all sales on digital downloads are non-refundable. Once purchased, the product will be yours forever. So be sure this is something you want by reading the products page thoroughly on exactly what you will get and that it's right for you.
As always, be sure to check out what your minimum scores for the nursing school (or dental program or other medical program) you're applying for are because it varies from school to school. Some school's require higher scores.