Merging Accounts? Specifically for Dragon Age continuity

I played disc version of dragon age origins as a kid, then bought it on steam as a teen, then bought it AGAIN on origin APP, then forgot all that and bought 2 and inquisition on a DIFFERENT account. So I've got two different accounts, and no way to link them! I know the "dragon keep" I can build my own story but it's saving stories wrong when i play, and none of the DLC for DA 2 is even accessible when I try to play it. I remember spending hours trying to fix this a few years ago with EA on the phone and doing whatever BS they said, but it boiled down to, they're incompetent. Any ideas on using save files existing to start new games?