The company, launched in 2011, has been acquired by new company Boundless, after writers have been left unpaid for months

Authors have been left unsure whether their books will be published and when they will receive outstanding payments after crowdfunding publisher Unbound went into administration last week.

The unique selling point of the publisher, launched in 2011 by QI researchers John Mitchinson and Justin Pollard, and Crap Towns author Dan Kieran, was that it allowed writers to pitch ideas online directly to readers. If enough people pledged financial support, the author would write the book, with supporters receiving various perks, such as early access to the book or a special edition.