Unban Please. I didnt know i have only had game for 6 hours and are already banned

What is your username :Ohyadonedidit

Who banned you :i don't know

When were you banned : 25/5/2012

Why were you banned if given reason :i don't know i was building and got banned

Give me your side of the story of whatever happened: Ok so an advertiser gave me exactly 64 blocks of white wood so i could build a house and then i asked another advertiser named Clark and he told me i could build where he was and he teleported me and the he told me to build near him so i did and within 5-10 minutes i was disconnected and i tried to connect again and it said i was hit with the ban hammer please help!

I have only had the game for 1day and i cant even play on the best server out there please unban me i am new to the world of minecraft.