Amazon had a Gift Card promotion where you buy $50 or more in gift cards and you receive an amazon credit. They did not honor the promotion. I will no longer trust Amazon to honor gift cards or promotions.
Edit: Not sure but the promotion credit appeared today when I went to order something. I made a few prior orders and did not get the promotion credit but after I left the review I got the credit on my next order. It did not show up anywhere but when I went to pay for something it discounted the price by the $15 promotion (showed up as promotion credit). Either I had the credit before but my orders did not qualify due to vendor or I got the credit after i left a low review. I increased the review to 3 stars from 1 star as I am unsure the reason why.