Ive just taken the plunge and bought a 3g PAYG iPhone. I wanted to transfer my number across from Vodafone and received a temporary O2 number to get me by, until it activated my old number (which took 48 hours or something). When i activated the phone in iTunes it asked me for my number to which i put in the temporary O2 number, but now my old Vodafone number has been activated across, the phone and iTunes both have the wrong number (the temp one) listed. Ive searched on iTunes and the phone itself how to change it but i cannot find it anywhere. Any advice welcome.