Battlefield 3 & 4 purchase transfer to steam

Hello again,

its been along time since i have been here. i started with EA game in 2010

I purchased Battlefield 3 on 6-19-2015 and so now today i see that the game is on steam.

Again i also purchased Battlefield 4 on 5-16-2016 and also see that game on steam. 

i am trying to contact whomever it may concern to get my necessary codes to get the games i purchased from steam as that platform is an all in one deal of thousands of games.