Heather Mills' charity row

Heather Mills has failed to hand over a multi-million pound charity donation. 05/17/2008 - Heather Mills - Farm Sanctuary 2008 Gala - Arrivals - Cipriani's Wall Street - New York City, NY, USA © Janet Mayer / PR Photos

05/17/2008 - Heather Mills - Farm Sanctuary 2008 Gala - Arrivals - Cipriani's Wall Street - New York City, NY, USA © Janet Mayer / PR PhotosThe former model vowed to give "a large majority" of her £24.3 million divorce payment from Sir Paul McCartney to the Adopt-A-Minefield organisation, of which she is a patron, but charity sources claim they haven't received anything.A source said: "They have waited in vain for their millions. She's had plenty of time, but sadly it's yet another untruth by the queen of lies."Heather made the donation pledge in 2006 during divorce proceedings from the former Beatles star.She also added in an interview last year: "Around 80 per cent of my money goes to charity."Meanwhile, Heather's former publicist has branded her a "pathological liar".Michele Elyzabeth says she was duped into spreading false stories about Paul and claims Heather bugged his conversations with his daughter Stella.Michele, who quit after working for Heather for four years, told Britain's News of the World newspaper: "She is a calculating pathological liar and the biggest b***h on the planet."At one stage we were so close I viewed her as the daughter I never had. Today I think of her as the witch I wish I never met. "I was foolish and saw her simply as the devoted humanitarian, charity campaigner and protective mother she wanted the world to see. Now I want the public to know who the real Heather Mills is."The publicist also alleged that Heather only married Paul for his money.She added: "I have asked myself many times what was Heather's motivation, but it all points to one thing - money. "She is a gold-digger. I'm certain her marriage to Paul was all about the money. She lied to me about Paul giving her money and experienced how she dodges bills - including my own fees."Heather and Paul split up in 2006 after four years of marriage. Their divorce was finalised earlier this year.