If you are trying the "New Player Codes" for the legendaries or epics yes none of those will work after you are beyond 72 hours of playing the game. You can also use only one within the first 72 hours only of those codes. 

Ty

No new codes? Been a minute...

it's typically 1/month, and the last one was feb 12

Better than any promo :)

Giftfrom2gt 

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