Thank you so much for taking the time to create this! It was a bit troublesome to figure all of this out by myself a few weeks ago. Good work!
...Okay, there is one thing that I cannot figure out even with this guide.
My sister's account will not change to "Free User" at all. We both made our accounts on the same day, January 26th. Then I bought MyShop at some point, and I have been able to buy/sell whenever I like. But I can't sell anything on AH through my sister's account (I proved that I can buy things, though). How exactly do you manually change from "Newbie" to "Free"?
Refer to here.