I tried the above but I have no 02 pay&go apn in the settings. I deleted all apns, and pressed rest. I then went into Xperia settings and downloaded internet settings and I still don't see any 02 pay&go apn, only a giffgaff.com apn. I've checked it and apart from the MMS proxy number, it's all correct. I've changed the MMS proxy number to the one above but still no joy ☹ any ideas?