UNITE has warned that Sainsbury’s workers will have to give up paid breaks, their spring bonus and premium pay for Sunday working if they accept the supermarket’s pay offer.

Bosses plan to increase the basic rate of pay by £1.20 an hour to £9.20 and £9.80 in London from September (the living wage stands at £8.75, £10.20 in London).

Sainsbury’s said it will be investing £100 million in its employees this year, funded by cost savings.