My in-game username is: takenlife

Anyway, I didn't play Minecraft yesterday and when I came back somebody had taken my second plot and cleared it.
There was a sign in my house that said "Your second plot has been cleared due to wrong use" At this point I am MAD
They didn't even ask me what I was using it for by waiting for me to come online.
Also, they didn't even give me ANY materials I had in my plot...

Now, what was in my plot?
An admin gave me two plots side by side with the fence removed so it would be bigger (I am a member).
On the plot they removed I was growing trees. Eventually I got the idea to make a tree house when I got two branching trees.
I started by building a ladder up the tree trunk and the built a small platform. By then I ran out of wood and planted some saplings.
I left the server for that day hoping that they would grow the next day so I could work on the tree house later.
I came back and ALL my stuff was gone.

My point?
Nobody told me anything, NO WARNINGS, and no confrontations.
I thought that plots were meant for building houses on. I was making a house.
The admin most likely thought it was just me building a small platform on a tree and leaving it at that.
It would have helped so much if they had at least asked ANYONE if they knew what I was up to.
I came back the next day and all my stuff was gone. At least 100 blocks of wood destroyed, and NONE put in a chest or any other way of "helping" me.

It would help me a lot if people could comment on what they think and eventually help to add a rule where an admin
must find out what somebody is doing and WARN someone of what they are doing BEFORE they do it.

Thank you very much for reading this, let me know of any solutions. Thanks again :D