Oh my goodness, I had the exact same experience with Home Depot. But then they responded to the chargeback and said it was delivered and no going back and forth with American Express would get them to help. I closed my AmEx card and am deeply skeptical of doing business with Home Depot.
Haha, same here. A package was never delivered (though the tracking number said that it was). Home depot representative couldn't resolve the issue, and recommended to make a charge back. After I made a chargeback, HD contacted the bank with a supporting package (receipt, tracking number, etc) and reversed the charge back. At this point I decided not to waste any more time for $50 item and moved on.
Blows my mind; reshipping the item would (given they sell it for a profit) cost HD less than me doing a 100% chargeback, and it would be better customer service. I guess they use the friction of doing a chargeback to be their fraud prevention.