If you want to change a user type, you can follow this guide: Can I change the user type for an existing user?

1. Go to your "Account" tab and select 'Manage users'.

Note: Only users who are paying a subscription can add or remove users from their account.

2. Here is a list of all existing users. To remove a user, click the pencil icon opposite their name and select 'Remove user'.

Note: You cannot remove yourself as a user of the account.