You expect that food factory worker get more than that?
Most do, and £1.50 above the national lowest (and only £1.10 more for nights!) is a very poor wage. You've never worked outside Poland (and not much inside Poland), have you Snotty?
The job, since it doesn't mention the company's name, sounds suspiciously like it isn't a job at all, just shifts from a bottom-feeding agency who siphon off a hefty chunk of the workers' wages.