@SamsungFanBoy If I had received an extremely expensive, brand new handset, and on the day I received it, started to have problems with it, I wouldn't be holding onto to it and posting about it in any community, nor would I be waiting for an appointment with an O2 Guru. It would be back in the box and on it's way back to O2 to get a replacement as soon as possible. If there's a wait to get the replacement because of the high demand, then so be it.
It's your right as a consumer to expect a fully functioning phone right out of the box, and not have to wait for some possible software update that may or may not resolve the issue.
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