I went to my account, clicked SONAR Platinum and no red download button. I've tried it in Firefox (latest version), Chrome (latest version) and Internet Explorer 10. I do not have room on my C: drive, but have plenty elsewhere and MUST install to another drive. When I look at the network traffic with Chrome's developer tools, it is failing when trying to call a service with a 400 error - invalid request.
The only thing worse for me than having to wait for my code from JRR shop. Now I have it and cannot install! Argh!