$FB finally launched their mobile payments via #WhatsApp in #Brazil, service charge is 3.99% to merchant. In comparison $TCEHY and $BABA charge less than 1.5% and #WeChat Pay &amp; #Alipay dominating mobile payments, now in over 60 countries 🌎 will FB Pay be as successful long term? https://t.co/4bU1EJRk9b