The Sun newspaper [part of News Corporation], mental health charity Mind and optical retailer Specsavers are among those who have asked the site [Ask.fm] to remove adverts…The controversy comes after the death of bullied 14-year-old Hannah Smith…A source at the Sun…told the BBC it would cancel the advertising package which saw an advert for the paper's new online service appear on the site…Vodafone, Specsavers, Save the Children and Laura Ashley have also moved to withdraw their adverts…