Need to speak to customer service to cancel my plan as I have subscribed to the incorrect plan

When you 'click to agree' to the subscription terms while buying a subscription, that means that you really do need to read BEFORE you buy a subscription... https://www.adobe.com/legal/subscription-terms.html

SOME programs are available Monthly https://community.adobe.com/t5/Get-Started/Being-charged-for-a-full-year-when-i-m-on-month-to-month/td-p/10248222 - links and pictures

For refund rules, refer the following link
https://helpx.adobe.com/manage-account/using/creative-cloud-subscription-terms.html

-Manan

Hello,

Sorry to hear that you are facing trouble but unfortunately you will not find the help you need at these forums. These are peer to peer forums and no one here has access to your account information. You will have to contact Support for the resolution of your issue. Click on the following link
https://helpx.adobe.com/contact.html
Make sure you are logged into your AdobeID, your browser has cookies enabled and no script blocker is enabled. Click on the chat icon on the bottom right.
Also be mindful of answering anyone who sends you a private message. See the following for more information about scammers
https://tinyurl.com/y7cfrr7y

-Manan