A shop belonging to a big electronics chain registered me as a member without my consent. After I contacted the chain about it, within a few days my informatio

A shop belonging to a big electronics chain registered me as a member without my consent. After I contacted the chain about it, within a few days my information had been erased and they said the clerk did not act appropriately and they'd also contact the shop in question to make sure this is not repeated. It's a long story, but when purchasing, the payment terminal asks "Member?". If you answer in the affirmative, apparently somehow one becomes a member. In this case, the clerk reached out from behind the counter and pressed the button on my behalf while I was busy putting my card away. The receipt had the text "member" with a membership number and so on. In retrospect I suspected that the clerk's KPI contains the number of new members. Most people probably won't care enough to raise noise about it. Before GDPR, and actually before the improved EU privacy laws in general, say, 20 years ago, fixing this would have likely involved navigating some sort of swamp of dark patterns with several phonecalls and tons of queueing, with a long lead time for the removal and so on.