This document discusses customer service and identifies the seven most common sins of poor customer service according to a customer service ratings organization. The seven sins are: not paying attention to customers, keeping customers waiting too long, lack of product or service knowledge, being pushy and upselling, being unhelpful or uncaring, breaking promises or providing false information, and being rude to customers. The document also identifies the top 10 and worst 10 companies for customer service according to customer surveys. The top companies provide excellent customer service while the worst companies have poor customer experiences and customer satisfaction.