John McDonnell MP, Labour's Shadow Chancellor responding to the reports that George Osborne is not responding to Labour's Urgent Question on the chaos around the Budget, said:
"It's unacceptable to the country and insulting to Parliament that the Chancellor is not turning up to respond to my Urgent Question on the chaos of his making around a Budget he delivered only last week which had collapsed by Friday night.
"This has meant hundreds of thousands of disabled people will have been worried needlessly by George Osborne.
"And today yet another thread of George Osborne's Budget has unravelled. The Chancellor and David Cameron knew that if they hadn't climbed-down on the Tampon Tax and Solar Jobs Tax they were heading for defeat and would have lost the first votes on a Budget Debate since 1994.
"George Osborne needs to now set out how he will fill the back hole in his Budget. His failure to do so means his fantasy £10bn surplus target, like his credibility, is further shot to pieces.
"It is deeply disappointing that George Osborne is cowardly hiding behind his junior minister instead of showing some leadership in a crisis of his own making."