Heather Mills and nanny 'fell out over breast enlargement'

Speaking at the third day of an employment tribunal brought by Sara Trumble, 26, Ms Mills said they were "very close" but their relationship turned sour when she refused to give her 4,000 to undergo breast enlargement surgery in the spring of 2008.

Ms Mills, who was cross-examined by Ms Trumble's solicitor Nick Fairweather, said: "I had a breast reduction when I was 21 and I couldn't pick anything up for weeks because it was so painful.

"I didn't criticise her wanting to have a breast enlargement, I just felt it would have been wrong of me to help with something that could have been a reaction to her boyfriend or her hormones."

Mr Fairweather accused Ms Mills of making up the issue as a way of explaining why Ms Trumble turned against her.

Disputing the date that Ms Mills said she asked her for the money, he said: "I suggest that your previous comments were to intimidate and bully and belittle her to stop her from going on with this claim.

"I suggest that you're telling a very, very unpleasant lie."

Sitting behind a desk at the front of the tribunal room, Ms Mills answered: "I'm not telling a lie. She asked me for 4,000. How on earth would I have known that amount when I put my statement together?"

The tribunal continues.