Redeemed Gift Card never showed up

So 2 days ago i got an EA gift card from a friend worth 25 euros who bought it from ALDI (German Supermarket).

I went to the Website to redeem it to see the value of the Gift card and accept. After that it said that the amount (25 euros) are now in my Wallet and ready to be used.

Sadly the Amount is not in my wallet (doesn't show up anywhere) and if i try to redeem the gift card again it says 0 euros (obviously because it has already been redeemed)

Sadly i have no proof of me redeeming the card because at the time i didn't think it was needed to record my screen.

Contacting support was a drag because they just said that there is no way to check if i redeemed something and that my only option is to go back to the retailer (ALDI) and to talk to them about it. (disclaimer: they don't care because they sold an official gift card and are now not taking it back because it has obviously been redeemed)

For me personally this really isn't about the money because it was a gift but the cause that it just cant happen that everything works out and then suddenly your money is gone and never showed up anywhere.