Yes, it is, they felt it was a technical glitch which just eventually sorted itself out... it may be the actual sim card itself that is a little temperamental, cos Irealize that this is not a common problem with 48 users, however, I had the same problem when I first put this self same sim card into my old phone and after a few days it also permitted me to make calls on that phone too, however, it took a few days before I could call anyone...I think you were the person who replied to my first plea for help when I first received the sim and added it to my old phone... you advised me to contact customer care, however before I had the opportunity to do so the phone began to function for calls, incoming and outgoing... this time though I again asked here, I remembered your advice and called tech support ... they were awesome to speak with and didn't send me on a wild goose chase as many of the other sim card providers do when an issue crops up. Thank you for your help way back then and for your help now 😁