Recruitment events
In some countries, such as Nigeria and Colombia, local leaders were pushed by iEarn Bot mentors - with whom they only ever communicated on Telegram - to organise recruiting events.
Andres, from Colombia, said he actively recruited people to join the app. He still believes the company is legitimate.
"They had their registration in the US that showed they were legit," he says. "And they were paying."
In his country, withdrawals were stopped in December. People were told the company was transforming investment in USDT - a well-established cryptocurrency - into a new coin called iBot, which had the same value.
Investors were asked to be patient until March, when the new coin was expected to be officially launched. But people are still waiting to access their money.