INSIGHT-The budget bank rattling South Africa's financial sector
August 31, 2017 at 02:00 AM EDT
STELLENBOSCH, South Africa, Aug 31 (Reuters) - A budget bank is booming in South Africa's economic slump, challenging the decades-long dominance of the "big four" lenders and prompting a price war that is driving down banking costs in a country where many people can't afford an account.