I got $1500 Amazon gift card from Delta due to an oversold ticket issue recently. On Aug. 3 I found a computer on Best Buy that I want to buy so I bought $1700 Best Buy gift card from Amazon using that balance. But a few hours later I received an email saying that order was canceled and my money was voided. I didn't have a clue I violated the terms and conditions. I called Amazon customer service many times and those agents have no clue about what's really going on and I can't get any useful response. It's not a small amount of money. I could use this for months. But now it's gone. I'm sad and angry. Really want to find some help here.