Wilko shoppers: tell us what you like most about the store

A branch of the discount retail homeware store Wilko is seen in London Photograph: Toby Melville/Reuters

The troubled budget retailer Wilko is calling in administrators, putting more than 12,000 jobs at risk after it failed to agree a rescue deal.

The chain is the largest retailer to collapse into administration since the convenience-store business McColl’s, which employed about 16,000 people, just over a year ago. McColl’s was rescued by the supermarket Morrisons.