@Ebaa33900166m14n
I'm sorry to hear you are unable to cancel your plan. We are unable to assist on the forums, because we do not have access to records. Only Adobe Customer Care can assist.
Try the link to auto-open the Chat:
https://helpx.adobe.com/contact.html?rghtup=autoOpen
Type "agent"
If your browser blocks the Chat window, try the troubleshooting tips here:
https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703
You can also send a post through X (formerly Twitter) to @AdobeCare.
Do not reply to PMs, which are likely to be scammers.
You might also try canceling again yourself (just in case);
https://helpx.adobe.com/manage-account/using/cancel-subscription.html
If you have an annual plan and are cancelling early, there is a fee for early cancellation.
I've moved your post to Account, Payment, & Plan, where another volunteer is likely to repeat everything I have said.
Jane