According to Odaily, Argentina has requested Tether to freeze 3.5 million USDT associated with Rainbowex, a company suspected of running a pyramid scheme affecting thousands of individuals. The operation involved 22 search warrants and resulted in the detention of 22 people. Rainbowex allegedly misled investors with promises of cryptocurrency returns while operating a closed-loop system that denied withdrawals. Investigations revealed that actors were hired to impersonate company representatives at events.