It was 2017 (or 2018, I am not sure) when I stumbled over a similar scam, albeit at smaller scale. They sold Swedish government backed crypto currency, back when the Swedish government thought about it. Website looked legit, so I registered and had nice call. Didn't buy anything in the end because it was just fishy. Saw the Facebook ads for a couple of months after that. Police said they investigated, but could find any entity behind the ad and closed the investigation. About 30 minutes on Google turned up a British registered company behind it, and that in fact it was a scam. So I am not surprised she got away with it, police seems to be pretty helpless when it come to scams like that and cybercrime in general.