Problem with key code

On 8/26/2010 I purchased SAP Crystal Reports Dashboard Design, full product (formerly known as Visual Advantage) . I was able to install the software without any issues. I then installed service pack 3 for my software. After installing SP3 I began experiencing issues with some of my features in the software. I read on the SAP site that some customers had to reinstall SP3 to correct the issue, so I did. After attempting to reinstall SP3 it told me it need to uninstall my product, after this happened I can no longer access the software I just purchased because my key code doesnu2019t work anymore. Can someone please help!