Online entertainment retailer has topped the National Consumer Satisfaction Index (NCSI-U.K.), an online customer survey evaluating goods and services purchased in the U.K.

With a score of 87 out of 100, was the overall leader, beating fellow online entertainment retailers and iTunes, as well as supermarket and department stores Waitrose, Tesco and John Lewis.

Almost 6,000 customers were surveyed for the NCSI-U.K. over the fourth quarter of 2008, in reference to satisfaction, expectations, perceived quality and complaint handling. NCSI-U.K. is produced by CFI Group using the patented methodology of the American Customer Satisfaction Index.

"We are absolutely delighted to have achieved first place in the National Customer Satisfaction Index ahead of all other U.K. retailers," said managing director Stuart Rowe in a statement. "This is a truly superb achievement for especially as customer service is at the heart of everything that we do. The fact that customers appreciate the focus we give to it is a real reflection that we have been successful in our efforts."

In December 2008, retained its position atop the Foresee Results Customer Satisfaction Index, an independent survey of 7,000 U.K. consumers for the online retail market during November and December 2008.