I have an unlocked iPhone on O2. Have had it a month - text messages have been working fine, i can send them, and i get them too. However, for some reason I no longer get any text messages from O2 (like missed call updates), and I no longer get text account balances from Lloyds TSB or Egg. I dont believe these have ever worked with my iPhone. Any idea why text messages appear to be working fine.... except for these O2 and banking ones....?