Unauthorized devices cant be removed from plex account

I have been struggling with this issue for awhile. There is an Xbox One and a Apple TV that somehow at one time got signed into on my plex pass account and have access to my server. I have since gone into the list of devices and removed them. However, For some reason these devices are still able to access my plex account and they are not using my password because i have changed my password to an extremely complex password that only I know. Any help on how to remove the access of these devices to my plex account would be greatly appreciated. To clerify they have access to both of my plex media servers