Original Reddit post

We just got a letter from GfK Nationale Radioforschung, offering us to wear a microphone watch to monitor radio consumption for market research purposes for between one to 6 months. The letter looks super sketchy, as does its website. It’s made even worse by the fact the letter is addressed to my sister, who hasn’t lived nor is resident at the place I do for about 20 years. What the heck is that, and where do they get their addresses from? How can I enforce that they reveal how they got the coordinates from? Is it even a legit thing? submitted by /u/Felyxorez

Originally posted by u/Felyxorez on r/Switzerland