I cannot ring my mums international number in Saudi arabia. It says its barred.when I enter the pin 1234 it says theres a network or sim error, to deactivate all call barring settings. I have tried many pins and still says same. Also, when I was in Athens Greece I could not ring UK. wasn't working. roaming was switched on too. International Call Barring setting is switched off on my virgin mobile account plan and devices online setting.