A Hertfordshire recruitment agency boss says she was told she could not request "reliable and hard-working" applicants.
Devonwood Recruitment boss Nicole Mamo said the Jobcentre Plus in Thetford, Norfolk, told her such an advert could be "offensive" to unreliable people.
Ms Mamo said: "I started to laugh. I said: 'That's crazy'."
A Department of Work and Pensions (DWP) spokesperson said the advert was worded as Ms Mamo requested online - but did not deny it differed in the Jobcentre.
Ms Mamo's company was advertising for a cleaning job at West Suffolk Hospital.
