Banned for scamming?

You have been banned for the following reason:
Scamming

Date the ban will be lifted: Never

If you feel that this ban was given in error, you may explain why you think so in the Dispute Forum without registering a new account, and a moderator or administrator will review your case and come to a final decision.

Is the message I got, when i tried to login today. I've got absolutaly no idea why this is, I haven't done any trade or talked to anyone atm just looking for some nice swaps or something.

And when I try to login today it says im banned. (in the morning everything was fine)

Now i'm also ip banned my ip is (87.194.83.27) So i'm using a proxy atm.

I dont see any scammer report on me, please tell me what happend?

(I haven't even added anyone how can i get banned, I don't even say my real msn in public, only when I see serious potential trades)

Please tell me why this is.

Please show prove of anything.