Q: Gift card redemption

I have a Barclay Visa with Apple rewards.  They have sent me 3 gift cards so far and all 3 cards are UNABLE to be redeemed.  I have tried to enter the cards with the camera and manually.  Each time I get an error that says, "You must enter a valid code".

Has anyone else had the same issue?  If so, how did you resolve it?  I'm thinking that maybe Barclay didn't activate them.  I have contacted Barclay and still waiting on a response from them.