Wireless operators are fighting a growing backlash from parents angry at <A HREF="http://news.zdnet.com/2100-1035_22-5692489.html?tag=zdnn.alert">the exorbitant ring tone bills</A> their children are racking up. At work is a teenager's penchant for reckless spending, helped along by advertising from ring tone providers, which some critics label as unclear, others as deceptive.