Sam's Club earns top marks for customer service

Sam's Club was among the highest-rated companies for customer service, according to new research from the Temkin Group. Other retailers included Publix, Hy-Vee, H.E.B., ShopRite, Aldi, Giant Eagle and JCPenney. Other companies earning top marks included Chick-fil-A, credit unions and Starbucks. Meanwhile, companies with the lowest ratings included Charter Communications, Time Warner Cable, Comcast, Citibank, Qwest, Cigna, and Bank of America. Among the winners, grocery chains were the only industry to earn a "strong" rating. Retailers, fast food chains, appliance makers, and investment firms round out the top five. But consumers gave very low ratings to TV service providers