First, the ign of the owner is Greentoast555 (often, you should get the ~Green on your ban message)
Howeve,r your appeal will be denied due to you using a client on your account, regardless of being unknowingly, I'd suggest you purchase a ban appeal.
"shroomcraftpvp.buycraft.net
^
Go to that site, click "Unbans," click Unban #1, add to cart, click on proceed to checkout, fill out the paypal info (get your parrents permission and have them do it for you if you don't have your own paypal,) and then click checkout, and you will be unbanned. Please respond if you have any more questions. =)" - Greentoast555