For the latest few years I've been with Tesco pay as you go plan. For 15 a month I get enough data and calls.
However I find the quality of the service poor. I've tried multiple times and can't get voicemail to work, and that's something I need.
Also roaming in the uk never seemed to work, at least very well.
Anyone know a good payg plan, one that is reliable and ideally has free roaming in the uk.