Lol. There are times when my team and I also get it wrong, and times when we disagree with a customer. The customers who feel we have done wrong have a different opinion of our customer service.
We are a small business. Companies on your side of the pond are around five times+ bigger than us, so experiences of customer service good and questionable will be more amplified.
My personal experiences have been related to retail stores during a visit to New York some twelve odd years ago, where I found the people working in stores – big and small to be very helpful. During my stay there I also visited Travers where the staff were very helpful and friendly. I also meet the then owner of Victor Machinery, who showed me a paper catalogue issued by his grandfather I think, back in 1940s. He showed me around his place and introduced me to his great team. I recall being amused watching them use gum paper tape to pack cartons and thinking it was old fashioned, or possibly the American way. ARC adopted the same idea some three years ago. 
I also have a chat now and then with Chris Wood – LittleMachineShop. I find him and his team to be very helpful too.
I did learn a few good things from my visit, as I am sure we all do from new experiences. I am sure that there must be more good companies there too.
Ketan at ARC