Ip banned

Hi, Whenever I try to get on sythe.org at my home computer it says sorry the administrator has banned your ip address. I have no idea why, Ive sent many messages to the person who deals with that, using the contact us thing at the bottum of the page. Nothing has happened though, I probably sent like 10 messages. I dont know what I did to get it, I used sythe alot like 5 months ago, then for 5 months I stopped playing rs thus not using sythe and come back to sythe and cant get on at my home computer. If anyone can help me out that would be greatly appreciated.