I agree about Amazon and Whole Foods. I'd like to add One King's Lane, a kind of discount online shop for antiques,furniture, furnishings, art and jewelry. Their prices range from about $6 on up to $35,000.
I ordered an outdoor mat for the front door. It appeared to have a very pretty image of ripe apples in a basket in front of an orchard. When it arrived I smelled it before I saw the package. The mat turned out to have what I believe was a petroleum-based backing and it was horrible. Horrible! I left it outside for a week but it never even lessened so last Thursday I stuck it in the trash can figuring it best to just get rid of it. But the next day I decided to email the company and tell them about my experience because they should know how poor it was. I certainly wasn't expecting anything nor did I ask for anything. (After all, I no longer had the item.)
Within a few hours they emailed me to apologize, to tell me they had issued a credit in full (including the shipping, a total of just over $20) and would also issue me a $15 credit. I emailed the contact person, thanked her, and asked her not to give me the extra credit because I felt that I did not deserve it. We emailed about it several times, but ultimately she honored my request. I was super pleased just to not be out the money for the order, and my respect went up several notches!