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
-http://helpx.adobe.com/x-productkb/policy-pricing/return-cancel-or-change-order.html
-http://helpx.adobe.com/x-productkb/policy-pricing/cancel-membership-subscription.html