These guys at Lovefone are amazing and recommend them to all my friends with phone problems. They already changed the charging dock on my iPhone 4S almost 2 years ago and it still works just fine. Recently my phones battery has been absolutely shocking ( maybe letting it swim in the bath doesn't help...oooops) so finally got some time to get it replaced. I booked a slot on thursday evening for Friday. I got there 10 minutes earlier but the guys were happy to help and I was in and out in 15 minutes. The best thing is that my phone now lasted over 30hours on a single charge!! WOW thank you