We had a big Ponzi that exploded last month in Argentina (and extended to a few nearby countries). They promised a
monthly interest from 7.5% to 20% (and IIRC they has even better offers for special "investors"). For example see
https://www.ambito.com/informacion-general/generacion-zoe/le... autotranslation
https://www-ambito-com.translate.goog/informacion-general/ge...