Overall, customer satisfaction fell in 12 of the business sectors that were measured. Surprisingly, the banking and building society sector was the only one which bucked the trend with an increase in customer satisfaction. The retail sector got a boost with retail food and non-food emerging as the best performing sectors in the index, while utilities, public sector and telecoms were the worst performers. Amazon, which has been in the spotlight over its tax affairs, is the highest scoring organisation, while John Lewis came in second.