Land is but isn't mine

[Lindal Kidd]

You'll have to take this up with your land manager!

EDIT:  MoiraKathleen brings up an excellent point.  If you deeded some Mainland to a group, then the group will show up as the owner, not you.  You did, I assume, donate tier to the group to cover the land's upkeep.  You still have full land management powers (I am assuming you are the owner of the group) and you will still be billed monthly for the land tier.

[Lindal Kidd]

You'll have to take this up with your land manager!

EDIT:  MoiraKathleen brings up an excellent point.  If you deeded some Mainland to a group, then the group will show up as the owner, not you.  You did, I assume, donate tier to the group to cover the land's upkeep.  You still have full land management powers (I am assuming you are the owner of the group) and you will still be billed monthly for the land tier.

[Alwin Alcott]

did you perhaps deed to group?

[moirakathleen]

If by "Land Manager" you are referring to the Land Manager section of your account information, and the land is showing up under "Group Land", then it is showing you tier that you have donated to a group, not necessarily land you own (unless the group is your own group). 

If you want to change the amount of tier that you are donating, or clear it all together, you will need to log in and then bring up that group, go to the 'land' tab, and change the amount of tier that it shows you donating.  

As an FYI, your own land tier fees do include tier that you donate to groups, so this is something to keep in mind if you are looking to lower your land tier fees, or remove them altogether.