Pyramid ##s robbed 3 million Colombians of at least $ 200 million , they say . Infuriated investors have demonstrated outside the headquarters of several companies in question across the nation . Many companies promised returns as high as 150 percent . Treasury Minister Oscar López Zuluaga says government laws against fraud . Authorities tracking down people behind businesses , many of whom have escaped .
Pyramid ##s robbed 3 million Colombians of at least $ 200 million , they say . Many companies promised returns as high as 150 percent . Treasury Minister Oscar López Zuluaga says government laws against fraud . Authorities tracking down people behind businesses , many of whom have escaped .