slypickleee
It does sound like those codes have been redeemed previously by you, potentially on a different EA account than the one you're using now. This isn't something we can verify or look into on the forums as we don't have access to your account information, but you can contact live support again and provide your codes so they can help locate where these packs are registered.
You will need to verify ownership of that other EA account, and then live support can explore some options with you. I'd recommend reaching back out to that team from the site here through a brand new help request.