First of all I'm from Slovenia and i have not yet experienced any throtoling.
I read the contract and it does not alow uploading/downloding of iligal material, but thats it. They only reserve the right to disconnect the connection in case of maintinence. So as my contract go, they cant do it. But you all should check your contract as I have a feeling that this is a legal gray zone so if you try and downlode some totaly legal thing (Linux distro from bittorrent) and you a throteled, show this as evidance and I think they are gonna have a problem explaining that.