We sincerely apologize here for the long wait time due to high volume.
As per your query, you mentioned about deactivating Creative Cloud licenses. If you are looking to Deactivate Creative Cloud licenses installed on a computer , then you may need to Launch the Creative Cloud App and click on your Profile Icon at the Top right and Select "Sign out" that will De-activate Creative Cloud license on that computer.
If you are looking to Cancel the Creative Cloud Team licenses and unable to do so due to high wait time in call, you may Sign in to: https://adminconsole.adobe.com/ with your account and Click on "Support" Tab at the Top Select "Start Chat" so that our Support Team can help in Cancelling Team licenses.
How do I Deactivate my acrobat 8 professional from old windows 7 PC and activate it on my new Windows 10 PC