I had bought a uniconnect sim card to be in touch with my mother once I got to London. Overall really bad experience. I had asked for a micro sim card, I got a nano sim. So I had to wait until I got the micro sim which I got a few hours before flying out. That sim card looked almost dead to me. It was that bad in condition. the network was really bad on that number. Mostly my calls would just drop. It was really frustrating to use that sim card. Its better to be without it than use a uniconnect sim.