Another story of mobile broadband sticker shock. Italy’s competition authority AGCM is looking into complaints that customers of 3, the Hutchison Whampoa-owned mobile network, was grossly overcharging for mobile web services. Reuters reports that the AGCM has “ordered” 3 to suspend the invoices of some customers, whose bills for the service reached some 10,000 euros ($15,850). The consumer watchdog said it was specifically looking into whether customers had been properly warned that they would trigger such high prices if they went over their 5 gigabyte per month data limit. The bills in question range from September 21, 2007 to May of this year, when 3 upgraded its billing system to prevent more cases like this happening.