We want our Customers to be completely satisfied with our products and services. If you feel that we could improve, please let us know and we will do our best to accomodate your request. You may address the email to customer-service @ sonicmedicine.com If you're experiencing any problems with one of our products please be sure to let us know, we have thousands of happy Customers and we want you to enjoy a positive experience too. Please include the following information in your email: name of product date of purchase name and location of store where purchased serial number your name a description of the problem you're having with the product We will gladly and without hesitiation, replace any defective CD. If you are having difficulty placing your order please either email us or try again by clicking here. We ship world-wide to the location of your choice.