B-and-Q’s among hundreds of companies found to have not paid their staff the National Minimum Wage.

In the case of the DIY chain, it insists the 456-thousand pounds in missed payments, to four-and-a-half thousand workers, wasn’t intentional, and all was repaid last July.

But the government’s naming and shaming employers to ensure they make improvements.

In total, 658 businesses have been fined.

St George’s, Epsom and St Helier Hospital Group in Surrey and south-west London was also named – but it insists no staff were underpaid, blaming a technical compliance issue.