Mange payment method

https://helpx.adobe.com/creative-cloud/help/manage-cc-individual-membership.html

if that fails to 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