Approximately 1,800 staff at the retailer’s warehouses in Worksop, Nottinghamshire, and Magor, Monmouthshire are due to walk out for 24 hours on October 21 and 22, effectively making it a two-day stoppage.

These strike days come in addition to planned action on October 11 and 14.

The strike days follow an industrial action ballot in which more than 84% of workers voted to strike over the rota changes by management.