Star Wars Squadrons Key won’t redeem

I recently purchased a key for Star Wars Squadrons off of cdKeys, which i know is a third party seller and is therefore subject to selling invalid keys, and when I input it into the redeem section of the EA app it gives me a game confirmation page then says the key is invalid. I’ve already charged back my keys since this is not my first time attempting this purchase, but the invalid keys i’ve been receiving has gotten me to the point where I don’t know if it’s the reseller or EA itself that’s causing the issue. All of my keys are redeemable through the EA app. I do really want ti play the game, but im unsure of how to move forward from now, as i’m not willing to spend $40 on a dead game but buying keys and refunding them is a waste of my time.