I have checked the "hint" link and I'm sure I have the right serial number. The system still tells me it is invalid. What do I do?
If you are certain that you have the correct model and serial number for your product, and the registration form still says the information is invalid, go to our Contact Us form. Fill in the requested information. Describe the error in the Comments field, and choose the category "Online Warranty Registration". A member of our Web support team will respond and assist you with your registration.