I bought a Sony Xperia XZ2 with them. 8 months into the contract, the headphone connection started playing up. I took the phone to the shop who sent it to their repairs team, who came back with and said nothing is wrong with the phone. Obviously, a couple of days later, it started playing up again with audio issues during a phone call. Repeat the same procedure, and same response from Carphone Warehouse. Finally, I had to take it to take it to a local shop who fixed it for me. Carphone Warehouse has been useless in dealing with the issue.
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