I upgraded my phone a few days ago in the Vodafone shop in Sutton, Surrey. I was served by a lovely guy called Josh who was very helpful and patient in helping me choose a phone. Unfortunately their computer system started causing problems just as I went to pay the extra. The shop was due to close but both Josh and a technical advisor called Sam, who I think is also the manager, stayed late in order to get the problem sorted out. They managed to do it in the end but it took them approx 40 mins. Both were brilliant in sorting out the problem. I took the phone back the next day to have my data transferred over by another member of staff who was efficient and very helpful. Have to say the service I received was very good.