This is driving me mad! for some reason that no-one has been able to identify, my iPhone 5 won't send or receive MMS's, O2 have checked their end three times and their instore techie has drawn a blank as well, all of the APN and MMS settings are fine and Apple say it won't be a hardware issue and I cannot go any further with them without spending £61. The phone was purchased in Jan this yr! anyone had similar issues?