Look thru the following links and use the chat option if required for your situation:
Cancel your membership or subscription | Creative Cloud
Chat support - For the link below click the Still Need Help? option in the blue area at the bottom and choose the chat option...
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Creative Cloud support (all Creative Cloud customer service issues)
http://helpx.adobe.com/x-productkb/global/service-ccm.html ( http://adobe.ly/19llvMN )