How can i delete my credit cards ?

1.  you have to fix your payment problem, first and then 2.  cancel the subscription.  then you can 3. remove your card.

1.  https://helpx.adobe.com/manage-account/kb/fix-failed-missed-payment.html?linkId=100000254860002

2.  make sure you're aware of the cancellation terms by selecting your plan type (at the top of the page here), https://helpx.adobe.com/manage-account/using/creative-cloud-subscription-terms.html

and for info on how to cancel your subscription, this page describes the few steps involved, https://helpx.adobe.com/manage-account/using/cancel-subscription.html

p.s. if you're contacted by anyone (via email or private message), it's much more likely to be a scammer than an adobe representative.

if you're unable to follow the steps described, check your account (https://account.adobe.com) for a payment problem. all payment problems must be resolved before cancellation is enabled, https://helpx.adobe.com/manage-account/kb/fix-failed-missed-payment.html

3.  https://helpx.adobe.com/manage-account/using/delete-adobe-account.html#:~:text=Delete%20Adobe%20Account%201%20Make%20a%20local%20copy,Then%20click%20Confirm%20delete%20account%20.%20See%20More.