Well maybe I am getting mixed up.... Srry, i had checked it on my phone in a rush so im probably wrong.
I guess I was just thinking that since you can RAF and have another account on the same battlenet, I thought that it would basically be the same thing....
You used to be able to, in fact it was ao easy many people added a bunch of trial accounts to their bnet by mistake (and you cant remove them). Blizzard either removed the ability to add more than 1 or made it harder. I havent been able to myself