Maybe you need to actually explore the game. Its right in the AD shop. Easy peasy, I found it in five minutes of playing this game. Then again, I actually looked around, read FAQ's and did what I was supposed to.
The Admin chat - Nemesiswarlock - is NOT in German. It only shows it that way when someone who is using the German 'version' gets a nightmare mount. The rest are in English. I've seen it in French, etc. but not all are that way. And no, my professions didn't dissapear.