anyone else having drama with this combo of phone and supplier? mine is a iphone 4s and it regularly seems to cease to work. i have got all 5 bars signal, wifi, 3G, the works. it just wont accept or make a call. this happens at least once a week, regardless of where I am in the UK, then seems to rectify itself. same for texts, they just stop arriving, then i get a gaggle of them a couple of hours later. the same applies to texts that I send, people tell me that they will recieve them from me in clusters of 3 or 4 and much later than the time i actually sent them O2 have a truly awful customer support line as well anyone else experienced this, or am I just the lucky one?