these are user-to-user forums.
to cancel, yourself use the info here, https://helpx.adobe.com/manage-account/using/cancel-subscription.html
if you need help, using a browser that allows popups and cookies, contact adobe support during pst business hours by clicking here, https://helpx.adobe.com/contact.html
click contact us (= cryptic icon in the lower right)
in the chat field, type AGENT
be patient, it can take quite a while to reach a human