I used the CODE but it didn't show a warning that there was a duplicate game.

Use the CODE for the game BF6 which already has the game in the library, but it doesn't show a warning that there is a duplicate game

I got a BF6 game CODE from the Intel event at the TGS2025 game event. My girlfriend and I got it too. I saw that Intel said it would expire on October 31st, so I'm worried. Actually, I think it means the master key, not the BF6 CODE that I already redeemed.

But because I was worried that it might expire, I tried using the BF6 CODE in this ID which had the BF6 game in my library from using my own CODE before. Then, when I tried to estimate that if my girlfriend's CODE hadn't expired and was still usable, the EA APP would show that you already had this game in your library.

But when I actually did it, I was able to use my girlfriend's CODE, and that CODE was completely wasted. I couldn't use it anymore. I was able to use this ID to play BF6 twice. T-T

Is there any way to help me get my girlfriend's CODE back? I feel sad because I lost a lot of money and I feel depressed.