The Worker Rights Consortium (WRC) estimates the total amount of unpaid wages so far to be more than £41m.
One worker said she only earned about half of what she needed to cover basic living costs, such as food and rent.
“If we had got the wage increase last year, we could have at least eaten vegetables a few times a month.
“I tried to talk to the factory management about it,” she added, “but they said, ‘this is what we pay to work here.
The children of garment workers are going hungry so brands can make a buck.”.
Marks & Spencer said it was working with the Ethical Trading Initiative to “demand” that its suppliers paid the legal minimum wage.
The statement added: “Wages should always be enough to meet at least the basic needs of workers and their families.”. »