Hi Fred,
Most manufacturers would advise against putting polish on true laminate flooring.
You mention that this is an insurance job, can you perhaps give us an idea, has the area been flooded etc.
If the laminate is dull, it has obviously not been cleaned correctly so replacement or an ability to live with it is probably the only thing to be done.
Laminates, should be swept, and damp mopped, (microfibre best here) on a regular basis, spills taken care of right away.
Regards,
Rob