https://www.reuters.com/article/us-facebook-brazil-cielo/facebook-cielo-ask-brazils-antitrust-watchdog-to-reverse-decision-on-payments-deal-idUSKBN2402LE

Facebook Inc and card acquirer Cielo SA have asked Brazil's antitrust watchdog Cade to reverse the suspension of an agreement they struck paving the way for WhatsApp to roll out a new payments system, according to a document.