Only cell c, Telkom and MTN offers WhatsApp data bundles in South Africa.
Cell c- with cell c you get 600mb to use for 30 days and pay R10
Telkom- with Telkom mobile you get 1GB for 30 and pay R15
MTN - With MTN you get 1GB for 30 days and pay R30
Vodafone - With Vodacom you get DOLOLO!!!