ive been banned

Hey, i got banned, i think, by Bnet and i need a way to be able to play still. when i try to connect all that comes up is that no servers were found. i have tried the cd-key refiller, but im not sure i followed the instructions right. if there is a simpler method plz tell me. or if somebody has the time can they walk me through the cd-key refiller. it would be most appreciated. thanks, The_GeeK