Heading away this summer? Don't fall foul of mobile charges

Just as football fever has kicked off around the world, it's also a whole year since we’ve been able to roam for ‘free’ in Europe (yes, we thought it had been longer, too). And while there's bargains to be grabbed to many popular destinations, if you're not careful, your mobile bill for visiting some surprisingly common holiday hotspots could set you back more than your trip.