Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, my buddy's account has been banned for insulting another player, something around those lines, anyways i would like to appeal for him so we can actually play together i myself do not wish to play without him, so here i am doing an appeal. I've already discussed with him that if this works to not speak to another player seeing that they can be offended very easily, not to mention mature language filter does exist. We just want to enjoy the experience so i hope this works and i hope the ban will be lifted it was just 4 days but we have nothing to do now, well any help we could get would be alot of help thanks!
character name: Dîvineshade
faction: Horde