Remove User from Quickbooks Account on camps.intuit.com
Welcome to the Community. Allow me to step in and help provide additional information with your question about removing users in QuickBooks.
If you want to check the user attached on the payment method, you can go to the CAMPS website, and click the Details option found below the Products & Services list. For the detailed steps, you can visit this article (scroll down to Update payment method):
Since you're getting an error message upon removing a user through the CAMPS website, you may need to contact our Customer Support Specialists. One of them will need to pull up your account on your behalf and make sure the user is no longer show on an active payment method in the system.
Here is the list of the support links that will help you reach out to them: