ISSUE WITH REFUND
My issue with the Amazon Gift card is that if you partiality use your gift card balance, whatever is the remaining balance on your card can no longer be refunded to your credit or debit card. I had over $100 USD remaining balance on my gift card but I  couldn't get a refund when I called customer service even though I used my debit card to top-up my  Amazon Gift card.  This issue has to be addressed  ASAP by Amazon. They should include this information in their terms of use.
Rating: 3 stars