Thank you for your interest in purchasing from Corvis Group, Inc.
For sales of online, electronic media, all sales are final and we are unable to offer a refund. If you have any issues downloading the product after payment, please contact us as soon as possible so we can send you a copy using an alternative method.
When purchasing of a product from us, you agree not to re-sell the contents. You may use the contents for personal, educational, or business use, so long as you provide adequate references and citations to our work.
If you have any questions, please contact us, and we will be happy to assist!