Widely leaked to Brazilian media over the weekend, Filho's allegations have had an explosive impact in Brazil.

The caller said Filho was tailed as he traveled local roads by motorcycle, often carrying his young son.

Reuters reported that Brazil's Education Minister Mendonça Filho asked lawmakers to approve the Fies credits as soon as possible.

Based on his earnings, Filho realised it would take nearly a decade to gather the funds for the trip.

If they do... we're going to take part, Guarani CEO Jacyr Costa Filho told analysts during a conference call.