I'm going to UK in a few weeks, will pick up and activate a Three UK SIM. Three has free roaming in many locations - in and outside of the EU.

After that trip, I expect to use it for the rest of the year outside the UK (and sometimes outside the EU) on an intermittent basis, and may not use it in the UK again for over a year.

Anyone know if Three enforces any rules about excessive roaming - I will, essentially be only roaming for a year with no domestic UK use.