O2, EE, Vodafone and Three beaten by MVNOs on price and service

Virtual operators like Smarty, Giffgaff, Tesco Mobile and Sky Mobile performed better than the big four operators on customer service and value for money in a Which? survey.
Consumer watchdog/ratings and reviews site Which? surveyed 3,305 mobile phone network customers in its annual mobile network survey, which takes the temperature of how consumers feel about their mobile operator in terms of quality and value for money, and ranks them accordingly.
Three performed the worst of the MNOs, coming