By Ruchi Gupta
AT&T accused of charging hidden fee
AT&T (T) has been sued in California on accusations that it secretly overcharges its wireless customers in an attempt to fatten its bottom line. According to a report from Ars Technica, two AT&T customers in California recently filed a lawsuit in a federal court in the state where they accused the company of charging customers more than the advertised rates for its wireless plans. The lawsuit specifically refers to what AT&T describes as the "Administrative fee" in customer bills.