Eon Xbox one s bundle

hello i recently purchased the xbox one s eon fortnite bundle for my son for christmas tomorrow and when i opened ro see if everything was there i noticed that there is no eon card with the code in the box at all and he really wanted this skin. I have
the reciept but they wont accept returns or a refund because they think i redeemed the code my self already now i dunno what to do becasue this is all my son wanted. I have picures but have crossed out some or my personal details.





:)