Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: not as easy as brick-and-mortar store certificates

I wish I had read the reviews before I purchased a gift card -- but the reviews and any stars don't appear on the gift certificate page that I can see. I purchased this for a recipient who has no credit card, not knowing that a credit card number is required to redeem the certificate. After being unable to redeem the card, he spent some time on the phone with customer service, as did I. There is, apparently, no way to use the card without a number, which seems to negate the whole point of a gift card. At one point, the customer service rep blithely replied that the recipient could use his debit card. Apparently the whole concept of being cardless was beyond her comprehension. I've learned, in talking with people about this card's drawbacks, that my sister also had problems redeeming an Amazon gift card a few years ago and neither she nor the person who gave her the card got the money back.