This is an open forum, not Adobe support... You need Adobe support to cancel a subscription
-start here https://forums.adobe.com/thread/1703848
-or by telephone http://helpx.adobe.com/x-productkb/global/phone-support-orders.html
--and two links which may provide more details, if the above links don't help you
Gabriela Kennedy, the CC purchased on Oct 1, 2014 is now cancelled, you shall not be billed any more for this.