Heather Mills To Prove Paul McCartney Worth More Than $800M

London, England (CNS) - Heather Mills is out to prove Sir Paul McCartney is worth $1.6 billion. The former glamour model is employing a team of forensic accountants to prove that her ex-husband is really a billionaire, despite the court-verified amount of just $800 million.

After being branded a "fantasist" by the judge who heard their divorce proceeding, Mills apparently wants to get more than the approximately $48 million she was awarded.

Mills had said after the divorce had been settled, "We all know he's worth ?800 million ($1.6 billion). He's been worth ?800 million for the last 15 years."

And now, the ex-wife, who has a 4-year-old daughter named Beatrice from McCartney, is out to prove that the Beatles legend is worth double the amount and that she can extract more money from him.

A pal tells the Daily Mail, "Heather says she can prove the amount of money that is being given to look after Bea will not last over the year. She is putting it to the test."

"Even with Bea traveling in economy, Heather says it's not enough. She is keeping every receipt - including her invoice to her security team - to show that ?35,000 ($70,000) is just not sufficient. Heather's thinking is that Bea should not be seen to have a different lifestyle when she is with Heather compared to Paul - and she is going about proving that is not possible."

The source continues, "Heather is hoping Paul will discretely make a payment to her annually rather than want to go back to court and rake all this up again."