Hello,
please use https://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html>>> and all the steps described in "Troubleshoot connectivity issues"
If necessary and for further questions click through http://helpx.adobe.com/contact.html and if "open" please use the chat, I for may part had the best experiences. I quote from Adobe's employee Preran: The chat button is activated as soon as there is an agent available to help.
Hans-Günter