Just when you thought Heather Mills couldn’t be any more of a train wreck, this comes from The Sun in London:

High-living Heather Mills was exposed as a hypocrite last night — for failing to buy first-class flights for daughter Beatrice.

Mucca slammed ex Sir Paul McCartney on Monday for forcing the four-year-old to travel “B Class” after their bitter divorce — while he flew “A Class.”

She haughtily vowed to pay for Beatrice’s first-class travel herself.

But details obtained by The Sun show the one-legged gold-digger has ALREADY failed to live up to her pledge …

Moments after her £24.3 million settlement with Sir Paul, Heather accused him of failing to provide enough cash for Beatrice to go first class.

She said: “Beatrice only gets £35,000 a year, so obviously she’s meant to travel B class while her father travels A class. But obviously I will pay for that.”

Yet Heather’s travel itinerary shows that, while she flies in luxury, Bea will be strapped in a cheap seat.

The Sun also did some due-diligence and found that plenty of Upper Class seats were available on the Virgin Atlantic flight Mills is booked on.