PMQs: Cameron and Sawford on minimum wage penalties
12 February 2014 Last updated at 14:48 GMT
The government was "standing up for the wrong people" over abuse of the minimum wage, said a Labour MP.
Andy Sawford said two employment agencies in his Corby constituency have received a penalty for failing to pay the minimum wage.
David Cameron said his was the first government to "name and shame" employers who failed to pay the correct amount, and it was making it easier to publish names of other firms breaking the law.