A user with a gift card can add the value to his wallet instantly if the giftcard is valid.
ACCEPT GIFT CARD, if the code is valid credit user wallet [POST] /wallet/giftcard user_id [INT] giftcode [string]
A user with a gift card can add the value to his wallet instantly if the giftcard is valid.
ACCEPT GIFT CARD, if the code is valid credit user wallet [POST] /wallet/giftcard user_id [INT] giftcode [string]