"another" permissions thread

Sorry for making another permissions thread but i don't want to post in someone else's and as the problem is mostly likely to be in my file....
Any way cant seem to get the users into groups everyone seems to go straight into the default "guest" group. Can anyone see where i gone wrong?

Code:

plugin:
    permissions:
        system: default
groups:
    guest:
        default: true
        info:
            prefix: ''
            suffix: ''
            build: false
        inheritance:
        permissions:
            - 'essentials.motd'
            - 'essentials.rules'
            - 'essentials.help'
            - 'lwc.blockinventory'
    member:
        default: false
        info:
            prefix: ''
            suffix: ''
            build: true
        inheritance:
        permissions:
            - 'lwc.protect'
    admin:
        default: false
        info:
            prefix: ''
            suffix: ''
            build: true
        inheritance:
        permissions:
            - '*'
Users:
    funk1983:
        group: member
        info:
            prefix: ''
            suffix: ''
        permissions:
    tigz1:
        group: admin
        info:
            prefix: ''
            suffix: ''
        permissions:
    MemP2kn11:
        group: admin
        info:
            prefix: ''
            suffix: ''
        permissions:

nvm, had a upper case in users: sry
/thread

EDIT by Moderator: merged posts, please use the edit button instead of double posting.