We all know the stories about how vacationing smartphone users became the victim of high roaming charges, resulting in monthly bills sometimes exceeding €1000. To put an end to this, the EU has come up with a rule stating that carriers can no longer charge more than €50 per month for roaming, and are obliged to warn the user before reaching this limit. That all sounds nice and consumer friendly, but I recently tested this, and received an “interesting” monthly bill from T-Mobile.