The higher the face value of the gift card, the more you'll pay in fees because of the 3 % fee. (thecollegeinvestor.com)
The full value of the gift card / certificate must be redeemed; retailers do not provide credit or cash back for any unused balance remaining on the gift card / check. (rbcbankusaredemption.com)
Some card companies will let you cash in your rewards for up to 20 percent off the face value of a gift card. (creditcards.com)