[damien c]

I would get it swapped ASAP!

Get a HTC One M8 if you want a decent build quality, or a Samsung if you don't mind plastic.

I have a Sony Xperia Z2 that was from EE and I have the same issues with my Virgin sim card in it, now I didn't have any problems with any other phone from EE with a Virgin sim in it but this Z2 is giving me nothing but problems.

When people try to call me if I have Wi-Fi turned on, and the phone is "sleeping" then they quite often get a message saying I am unreachable or something like that, but as soon as I take the phone out of "sleep" I can be called and start to receive texts.

The issue I think is with the Sony phones and the Virgin network but, I cannot say for sure but I know I will be getting rid of my Z2 ASAP!