Q: iPhone 5 not recognised by iTunes

Got a brand new iPhone 5 from the Apple store used it for only a day.

I decided to plug my phone into my laptop which is on OSX Mountain Lion.

Yet my iTunes wont recognise the phone, I've searched all the forums to find a solution but nothing has worked.

The phone just keeps asking if I should trust this computer, then does nothing afterwards.

As a check, I plugged in my friends phone, and it recognised it, so now I believe its my iPhone that isnt synching with my iTunes.

Attempted to: Reinstall iTuness (By using terminal), Reset settings on iPhone, Updated everything, used different cables.

Somebody please help! I only have a Mac computer!