"Another day, another 10% price rise, and we've got a Prime Minister who's standing up for the energy companies, not hard-pressed families," said Labour leader Ed Miliband today.
"That's why we need Labour's price freeze."
He said Britain needs to "reform a broken market that is in the grip of the big six energy companies."
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Proud parent Zara Tindall is the Queen’s granddaughter.
Former minister Norman Lamb made the accusation as MPs debated a review into the medicinal use of the drug.
The new addition to the family is the Queen’s seventh great-grandchild.