Contact sales support by web chat or phone.
Please contact the support through call/chat for the cancellation requests and the billing queries:
**Be sure to remain signed in with your Adobe ID before accessing the link above**
You may also refer to the help document below:
Please go through the Adobe - Subscription Terms as well.
The CC purchased on 07/08/15 is cancelled, The one purchased later is still active, it is a Digital river store purchase, so the support only can cancel, please follow as suggested.