This company owns Kantar Operations, which in the US engages in harassing phone calls to carry out their surveys, calling repeatedly on mornings, evenings and Sundays. From Chicago they use phone number 630 505 3008, apparently among many others. A website devoted to abusive calls lists more than 700 queries from people receiving their repeated intrusions.

Without knowing more about them I would say they're scum.

The company website, I notice, has a section called "Ethics." LOL.