just4this

I'm so sorry, but I keep forgetting where in the game to go to use the promo codes. I've only been playing a week or 2 and I know I've stumbled across it before, but never when I need it. Second question is, when do the Legendary Guys get stronger that the common and starter guys? I am up to level 142 and my maxed leveled starter and common guys are still more powerful than my maxed Legendary Guys. Is it because the Legendary Guys I have are only 3 stars and not 5 like lots of my starter and common guys?