Cancelled the plan but still being charged for it

It sounds to me as if your bank card may have been compromised by somebody pretending to be you.  It happens all the time.  Adobe are victims of the fraud too.  You need to file a fraud report with your bank immediately so they can close your old account  and issue you a new  card.

check your account to verify your subscription is what you expect and to verify your adobe id (used in the next step), https://accounts.adobe.com/

if your account shows

a. you have no subscription and you're paying for one. using a browser that allows popups and cookies,  contact adobe support during pst business hours by clicking here and, when available, click 'chat', http://helpx.adobe.com/x-productkb/global/service-ccm.html

b. you still have a subscription, https://helpx.adobe.com/creative-cloud/help/cancel-membership.html

p.s. if you're cancelling an annual plan early, there's a penalty (=1/2 the cost of the remaining months).