Thousands of Next’s workers have been underpaid over several months after the bungled implementation of new payroll system back in February.
According to The Sunday Times, the retailer has also deducted pension payments from some staff without investing them in their retirement pots.
However, some staff have been overpaid in some instances which has led to some not being able to access universal credit.
The newspaper said Next’s retail sales director, Shonnagh Taylor, had told staff that the company had at one stage been receiving up to 113 calls a day regarding pay issues, but these had now dropped to around 50 a day.