Kastelo GIGS is South Africa’s new mobile network designed around affordability, flexibility, and fairness. Powered by fintech innovation from Kastelo, GIGS offers one simple balance for data, calls, and SMS — with data that never expires and the ability to sell back unused data for cash. More than just a network, GIGS is part of Kastelo’s mission to put control back in people’s hands and help South Africans get more value from their money and digital lives.