Bought a waterproof Xperia Z1 phone from carphone warehouse 18 months ago. It's broken five times, most recently as a result of water damage, even though it's advertised as a waterproof handset. They refuse to accept my claim that it is faulty (how can a waterproof phone be water damaged? And how can water damage void its warranty??) and is not fit for purpose, I have exhausted their internal complaints system and my next port of call is the area manager and company CEO. I expect to be forced to take legal action if these last measures fail. Also been lied to by the assistant manager of one shop about my consumer rights. Will never buy anything from carphone warehouse or talk talk for the rest of my life. Truly the worst customer service I have ever experienced. Avoid at all costs