Hi @elegant_Rainbow1cb2,
Thanks for the screenshots, that helps a lot. Let me clear up what's happening and point you the right way.
The two accounts on your email aren't in conflict. When the same email is tied to both a business plan and a personal one, Adobe automatically creates two separate profiles for it, a Business Profile and a Personal Profile, each with its own storage. That's why you're seeing two accounts rather than one: https://helpx.adobe.com/enterprise/using/manage-adobe-profiles.html
For a Creative Cloud for teams plan, cancellation is managed from the Admin Console under Account > Plans and licenses. Since you're the admin and contract owner and you're looking to close out the organization entirely and remove the account, the cleanest way to handle this is directly with our Customer Care team, who can action the closure and make sure nothing is left in a half-closed state. Sign in to the Admin Console at https://adminconsole.adobe.com, open the Support tab, and select Start chat. Let them know you'd like to close the organization and remove both accounts, and they'll take it from there.
Please give that a try and let us know how it goes, we're happy to help further.
Thanks,
^AV