You can remove a Service Administrator at any time, as long as you are a Service Administrator.
1. Log into the partner site, select service manager.
2. Click on the Manage Service Administrators button on the right of the screen.
3. A pop-up box with all your current Service Administrators will come up. Find the person you wish to remove and click on the rubbish bin icon next to their name.
4. The rubbish bin will highlight red. Click again to delete, then click done. The person will be removed from your list.