I am green with envy. South Africa, data is so expensive I literally only check my WhatsApp messages when using cellular networks. Everything else I do when I connect to ADSL backed WiFi connection. Here are two deals being advertised on Vodacom (vodafone), the largest cellular network in SA. Per month. (Yes it is MB not GB).
$35 400 Minutes 900MB 400 SMSs
$50 600 Minutes 1200MB 600 SMSs