I asked the Winchesters about the deal.
Apparently, they asked for their sons to be brought back from Hell in exchange for my soul. Da De didn't want my soul. No one wanted my soul.
Instead, Da De asked for a favor when I turned six months old. She asked if the night I turned six months, she could come visit me in my nursery. She said that is she could, they would get their sons back, exactly as they were, with no missing parts( of body or soul).
Them really wanting their kids back, said yes. The even went to the extremities to make sure that Da De was not interrupted. They knew what she was going to do to me because it had already happened to Sam.
Since Azazel was interrupted with Sam, Sam didn't get everything he could have.
Since I got everything, I could do the demons bad deeds with my mind, hence my ability to make Tommy Kae cough up coins.
