HI Dominic
I checked your subscription and it shows active. Try the steps in this help page. Remove the opm.db to help reset the CC app manager.
http://helpx.adobe.com/creative-cloud/kb/creative-cloud-application-recognizing-available. html
Go thru the steps in this link to help make sure that your computer can communicate with the Adobe server
http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
Thanks
Scott