Hi, I have a similar problem. I had linked all my accounts. I bought the game on Steam. The EA app doesn't show that I own the game. When I redeemed my promo code, it said that I have to have installed BF6 on the EA app. I have the game, but the problem is that Steam and the EA app are not linked properly. On the website on EA, there is a connection between Steam EA, Twitch - everything. I contacted support and they said that this problem is known, that I should wait for EA update. In my opinion, there is a similar problem with functionality in your case. Hope they solve it soon.
