I got banned for scriping but did not script, what can I do to get myself unbaned?

I want to get my account unbanned, so can I do to get unbanned?
This is what I recieved >>> (Your account was banned due to the use of malicious 3rd party programs or modifications to your League of Legends client. We believe that all players should play on equal footing in an effort to promote competitive sportsmanship. You should be aware that modifying your League of Legends client is against the Terms of Use: http://na.leagueoflegends.com/en/legal/termsofuse. We hope you can see that it is unsatisfying to play against other players who are using a tool to gain an advantage over others.) Please respond riot, I am begging to know what I can do to get my account back.
-XxPrinceEricXx